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He Y, Deng Q, Cao L, Luo C, Zhao W, Tao H, Chen L, Zhu Y, Zhang J, Mo X, Mi B, Wu F. Highly efficient Ni(II) adsorption by industrial lignin-based biochar: a pivotal role of dissolved substances within biochar. Environ Sci Pollut Res Int 2024; 31:10874-10886. [PMID: 38212563 DOI: 10.1007/s11356-024-31889-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024]
Abstract
In the context of carbon neutrality, promoting resource utilization of industrial alkali lignin addressing heavy metal pollution is crucial for China's pollution alleviation and carbon reduction. Microwave pyrolysis produced functionalized biochar from industrial alkali lignin for Ni(II) adsorption. LB400 achieved 343.15 mg g-1 saturated adsorption capacity in 30 min. Pseudo-second-order kinetic and Temkin isotherm models accurately described the adsorption, which was endothermic and spontaneous (ΔGϴ < 0, ΔHϴ > 0). Quantitative analysis revealed that both dissolved substances and carbon skeleton from biochar contributed to adsorption, with the former predominates (93.76%), including mineral precipitation NiCO3 (Qp) and adsorption of dissolved organic matter (QDOM). Surface complexation (Qc) and ion exchange (Qi) on the carbon skeleton accounted for 6.3%. Higher biochar preparation temperature reduced Ni(II) adsorption by dissolved substances. Overall, biochar which comes from the advantageous disposal of industrial lignin effectively removes Ni(II) contamination, encouraging ecologically sound treatment of heavy metal pollution and sustainable resource utilization.
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Affiliation(s)
- Yanying He
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Qianyi Deng
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Liwen Cao
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Cheng Luo
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Wenjie Zhao
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Honglin Tao
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Long Chen
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Yule Zhu
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Jing Zhang
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Xueying Mo
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
| | - Baobin Mi
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China
- Research Institute of Vegetables, Hunan Academy of Agriculture Sciences, Changsha, 410125, China
| | - Fangfang Wu
- School of Chemistry and Materials Science, College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, People's Republic of China.
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Li J, He Y, He C, Xiao L, Wang N, Jiang L, Chen J, Liu K, Chen Q, Gu Y, Ma M, Yu X, Xiang Q, Zhang L, Yang T, Penttinen P, Zou L, Zhao K. Diversity and composition of microbial communities in Jinsha earthen site under different degree of deterioration. Environ Res 2024; 242:117675. [PMID: 37984784 DOI: 10.1016/j.envres.2023.117675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/22/2023]
Abstract
Earthen sites are the important cultural heritage that carriers of human civilization and contains abundant history information. Microorganisms are one of important factors causing the deterioration of cultural heritage. However, little attention has been paid to the role of biological factors on the deterioration of earthen sites at present. In this study, microbial communities of Jinsha earthen site soils with different deterioration types and degrees as well as related to environmental factors were analyzed. The results showed that the concentrations of Mg2+ and SO42- were higher in the severe deterioration degree soils than in the minor deterioration degree soils. The Chao1 richness and Shannon diversity indices of bacteria in different type deterioration were higher in the summer than in the winter; the Chao1 and Shannon indices of fungi were lower in the summer. The differences in bacterial and fungal communities were associated with differences in Na+, K+, Mg2+ and Ca2+ contents. Based on both the relative abundances in amplicon sequencing and isolated strains, the bacterial phyla Actinobacteria, Firmicutes and Proteobacteria, and the Ascomycota genera Aspergillus, Cladosporium and Penicillium were common in all soils. The OTUs enriched in the severe deterioration degree soils were mostly assigned to Actinobacteria and Proteobacteria, whereas the Firmicutes OTUs differentially abundant in the severe deterioration degree were all depleted. All bacterial isolates produced alkali, implying that the deterioration on Jinsha earthen site may be accelerated through alkali production. The fungal isolates included both alkali and acid producing strains. The fungi with strong ability to produce acid were mainly from the severe deterioration degree samples and were likely to contribute to the deterioration. Taken together, the interaction between soil microbial communities and environment may affect the soil deterioration, accelerate the deterioration process and threaten the long-term preservation of Jinsha earthen site.
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Affiliation(s)
- Jing Li
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China; College of Life Science, Sichuan University, Chengdu, 610065, China
| | - Yanqiu He
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Changjie He
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Lin Xiao
- Chengdu Institute of Cultural Relics and Archaeology, Chengdu, 610072, Sichuan, China
| | - Ning Wang
- Chengdu Institute of Cultural Relics and Archaeology, Chengdu, 610072, Sichuan, China
| | - Luman Jiang
- Chengdu Institute of Cultural Relics and Archaeology, Chengdu, 610072, Sichuan, China
| | - Juncheng Chen
- Chengdu Institute of Cultural Relics and Archaeology, Chengdu, 610072, Sichuan, China
| | - Ke Liu
- Jinsha Site Museum, Chengdu, Sichuan, 610074, China
| | - Qiang Chen
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Yunfu Gu
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Menggen Ma
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Xiumei Yu
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Quanju Xiang
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Lingzi Zhang
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Tao Yang
- Chengdu Institute of Cultural Relics and Archaeology, Chengdu, 610072, Sichuan, China
| | - Petri Penttinen
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China
| | - Likou Zou
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China.
| | - Ke Zhao
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China.
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53
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Wang Z, Song W, Song H, Huang W, Li Y, Feng J. Effects of extraction methods on the physicochemical properties and functionalities of pectic polysaccharides from burdock (Arctium lappa L.). Int J Biol Macromol 2024; 257:128684. [PMID: 38086431 DOI: 10.1016/j.ijbiomac.2023.128684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/02/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023]
Abstract
In this work, the effects of four different extraction methods, acid (HCl), alkali (NaOH), enzymes (cellulase/pectinase), and buffer (pH 7.0) on the physicochemical properties and functionalities of burdock pectin were systematically investigated and compared. Buffer extraction gave a low yield (2.8 %) and is therefore limited in its application. The acid treatment hydrolyzed the neutral sidechains and gave a homogalacturonan content of 72.6 %. By contrast, alkali and enzymes preserved the sidechains while degrading the polygalacturonan backbone, creating a rhamnogalacturonan-I dominant structure. The branched structure, low molecular weight, and high degree of methylation (42.3 %) contributed to the interfacial adsorption, emulsifying capacity, and cellular antioxidant activity of the enzyme-extracted product. For the acid-extracted product, the strong intramolecular electrostatic repulsion restricted the formation of a contact interface to prevent coalescence of the emulsion. In addition, they did not have sufficient reducing ends to scavenge free radicals. Although a high branching size (5.0) was adopted, the low degree of methylation (19.5 %) affected the emulsifying capacity of the alkali-extracted products. These results provide useful information for pectic polysaccharides production with tailored properties.
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Affiliation(s)
- Zhen Wang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China; Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
| | - Wancheng Song
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China; Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
| | - Haizhao Song
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Wuyang Huang
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
| | - Ying Li
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China.
| | - Jin Feng
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China.
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Lee S, Kim E, Jo M, Choi YJ. Characterization of yeast protein isolates extracted via high-pressure homogenization and pH shift: A promising protein source enriched with essential amino acids and branched-chain amino acids. J Food Sci 2024; 89:900-912. [PMID: 38193157 DOI: 10.1111/1750-3841.16918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/12/2023] [Accepted: 12/15/2023] [Indexed: 01/10/2024]
Abstract
In the global food industry, plant-based protein isolates are gaining prominence as an alternative to animal-based counterparts. However, their nutritional value often falters due to insufficient essential amino acids. To address this issue, our study introduces a sustainable protein isolate derived from yeast cells, achieved through high-pressure homogenization (HPH) and alkali pH-shifting treatment. Subjected to HPH pressures ranging from 60 to 120 MPa and 1 to 10 cycles, higher pressure and cycle numbers resulted in enhanced disruption of yeast cells. Combining HPH with alkali pH-shifting treatment significantly augmented protein extraction. Four cycles of HPH at 100 MPa yielded the optimized protein content, resulting in a yeast protein isolate (YPI) with 75.3 g protein per 100 g powder, including 30.0 g of essential amino acids and 18.4 g of branched-chain amino acids per 100 g protein. YPI exhibited superior water and oil-holding capacities compared to pea protein isolate, whey protein isolate (WPI), and soy protein isolate. Although YPI exhibited lower emulsifying ability than WPI, it excelled in stabilizing protein-stabilized emulsions. For foaming, YPI outperformed others in both foaming ability and stabilizing protein-based foam. In conclusion, YPI surpasses numerous plant-based protein alternatives in essential amino acids and branched-chain amino acids contents, positioning it as an excellent candidate for widespread utilization as a sustainable protein source in the food industry, owing to its exceptional nutritional advantages, as well as emulsifying and foaming properties. PRACTICAL APPLICATION: This study introduces a sustainable protein isolate derived from yeast cells. YPI exhibited considerable promise as a protein source. Nutritionally, YPI notably surpassed plant-based protein isolates in EAA and BCAA contents. Functionally, YPI demonstrated superior water-holding and oil-holding capacities, as well as an effective emulsion and foam stabilizer.
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Affiliation(s)
- Suyoon Lee
- Department of Agricultural Biotechnology, Seoul National University, Gwanakgu, Seoul, Republic of Korea
| | - Eunghee Kim
- Smart Food Manufacturing Project Group, Korea Food Research Institute, Wanju, Republic of Korea
| | - Myeongsu Jo
- Center for Food and Bioconvergence, Seoul National University, Gwanakgu, Seoul, Republic of Korea
| | - Young Jin Choi
- Department of Agricultural Biotechnology, Seoul National University, Gwanakgu, Seoul, Republic of Korea
- Center for Food and Bioconvergence, Seoul National University, Gwanakgu, Seoul, Republic of Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Gwanakgu, Seoul, Republic of Korea
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55
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Piedras P, Cumpanas AD, McCormac A, Lavasani SAM, Gorgen ARH, Rojhani A, Vu MC, Bhatt R, Asplin J, Tano ZE, Landman J, Clayman RV, Patel RM. Alkaline Water: Help or Hype for Uric Acid and Cystine Urolithiasis? J Urol 2024; 211:276-284. [PMID: 38193415 DOI: 10.1097/ju.0000000000003767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/20/2023] [Indexed: 01/10/2024]
Abstract
PURPOSE The consumption of alkaline water, water with an average pH of 8 to 10, has been steadily increasing globally as proponents claim it to be a healthier alternative to regular water. Urinary alkalinization therapy is frequently prescribed in patients with uric acid and cystine urolithiasis, and as such we analyzed commercially available alkaline waters to assess their potential to increase urinary pH. MATERIALS AND METHODS Five commercially available alkaline water brands (Essentia, Smart Water Alkaline, Great Value Hydrate Alkaline Water, Body Armor SportWater, and Perfect Hydration) underwent anion chromatography and direct chemical measurements to determine the mineral contents of each product. The alkaline content of each bottle of water was then compared to that of potassium citrate (the gold standard for urinary alkalinization) as well as to other beverages and supplements used to augment urinary citrate and/or the urine pH. RESULTS The pH levels of the bottled alkaline water ranged from 9.69 to 10.15. Electrolyte content was minimal, and the physiologic alkali content was below 1 mEq/L for all brands of alkaline water. The alkali content of alkaline water is minimal when compared to common stone treatment alternatives such as potassium citrate. In addition, several organic beverages, synthetic beverages, and other supplements contain more alkali content than alkaline water, and can achieve the AUA and European Association of Urology alkali recommendation of 30 to 60 mEq per day with ≤ 3 servings/d. CONCLUSIONS Commercially available alkaline water has negligible alkali content and thus provides no added benefit over tap water for patients with uric acid and cystine urolithiasis.
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Affiliation(s)
- Paul Piedras
- Department of Urology, University of California, Irvine, Orange, California
| | - Andrei D Cumpanas
- Department of Urology, University of California, Irvine, Orange, California
| | - Amanda McCormac
- Department of Urology, University of California, Irvine, Orange, California
| | | | - Antonio R H Gorgen
- Department of Urology, University of California, Irvine, Orange, California
| | - Allen Rojhani
- Department of Urology, University of California, Irvine, Orange, California
| | - Minh-Chau Vu
- Department of Urology, University of California, Irvine, Orange, California
| | - Rohit Bhatt
- Department of Urology, University of California, Irvine, Orange, California
| | - John Asplin
- Litholink Corporation, Labcorp, Ithasca, Illinois
| | - Zachary E Tano
- Department of Urology, University of California, Irvine, Orange, California
| | - Jaime Landman
- Department of Urology, University of California, Irvine, Orange, California
| | - Ralph V Clayman
- Department of Urology, University of California, Irvine, Orange, California
| | - Roshan M Patel
- Department of Urology, University of California, Irvine, Orange, California
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Du ZQ, Jiang Y, Lu RR, Zhou Q, Zhu HH, Shen Y. Clinical pharmacist intervention in contraindications of the co-administration of cefoperazone and ambroxol hydrochloride injection. Eur Rev Med Pharmacol Sci 2024; 28:1610-1613. [PMID: 38436193 DOI: 10.26355/eurrev_202402_35490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
BACKGROUND Clinical pharmacists identified contraindications in two cases concerning the co-administration of cefoperazone and ambroxol hydrochloride injection, prompting a thorough investigation. CASE PRESENTATION Clinically, two cases of contraindications for the co-administration of cefoperazone and ambroxol hydrochloride injection were discovered. After the intervention and analysis by clinical pharmacists, the possible reason could be the precipitation of free alkali due to the immediate administration of ambroxol after the infusion of cefoperazone. Clinical pharmacists suggested avoiding the co-administration of the two and recommended flushing the intravenous lines with 5% glucose injection or 0.9% sodium chloride injection during intravenous infusion to prevent direct drug interaction causing precipitation, thereby reducing the occurrence of adverse events. No adverse events occurred after the intervention, and no harm was caused to the patients. CONCLUSIONS The co-administration of cefoperazone and ambroxol hydrochloride injection can lead to the precipitation of free alkali, posing a risk of adverse events. Clinical pharmacists' intervention could prevent this interaction. This practice has been shown to be effective, with no subsequent adverse events reported.
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Affiliation(s)
- Z-Q Du
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China.
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Tang H, Zhong Z, Hou J, You L, Zhao Z, Kwok LY, Bilige M. Metagenomic analysis revealed the potential of lactic acid bacteria in improving natural saline-alkali land. Int Microbiol 2024; 27:311-324. [PMID: 37386210 DOI: 10.1007/s10123-023-00388-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 07/01/2023]
Abstract
Management and improving saline-alkali land is necessary for sustainable agricultural development. We conducted a field experiment to investigate the effects of spraying lactic acid bacteria (LAB) on the cucumber and tomato plant soils. Three treatments were designed, including spraying of water, viable or sterilized LAB preparations to the soils of cucumber and tomato plants every 20 days. Spraying sterilized or viable LAB could reduce the soil pH, with a more obvious effect by using viable LAB, particularly after multiple applications. Metagenomic sequencing revealed that the soil microbiota in LAB-treated groups had higher alpha-diversity and more nitrogen-fixing bacteria compared with the water-treated groups. Both viable and sterilized LAB, but not water application, increased the complexity of the soil microbiota interactive network. The LAB-treated subgroups were enriched in some KEGG pathways compared with water or sterilized LAB subgroups, such as environmental information processing-related pathways in cucumber plant; and metabolism-related pathways in tomato plant, respectively. Redundancy analysis revealed association between some soil physico-chemical parameters (namely soil pH and total nitrogen) and bacterial biomarkers (namely Rhodocyclaceae, Pseudomonadaceae, Gemmatimonadaceae, and Nitrosomonadales). Our study demonstrated that LAB is a suitable strategy for decreasing soil pH and improving the microbial communities in saline-alkali land.
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Affiliation(s)
- Hai Tang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
- Key Laboratory of Dairy Products Processing, Scientific Observation and Experiment Station of Utilization of Agricultural Microbial Resources in Northeast Region, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
| | - Zhi Zhong
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
- Key Laboratory of Dairy Products Processing, Scientific Observation and Experiment Station of Utilization of Agricultural Microbial Resources in Northeast Region, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
| | - Jingqing Hou
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
- Key Laboratory of Dairy Products Processing, Scientific Observation and Experiment Station of Utilization of Agricultural Microbial Resources in Northeast Region, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
| | - Lijun You
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
- Key Laboratory of Dairy Products Processing, Scientific Observation and Experiment Station of Utilization of Agricultural Microbial Resources in Northeast Region, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
| | - Zhixin Zhao
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
- Key Laboratory of Dairy Products Processing, Scientific Observation and Experiment Station of Utilization of Agricultural Microbial Resources in Northeast Region, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
| | - Lai-Yu Kwok
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
- Key Laboratory of Dairy Products Processing, Scientific Observation and Experiment Station of Utilization of Agricultural Microbial Resources in Northeast Region, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
| | - Menghe Bilige
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China.
- Key Laboratory of Dairy Products Processing, Scientific Observation and Experiment Station of Utilization of Agricultural Microbial Resources in Northeast Region, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China.
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Zhou H, Cai Y, Long M, Zheng N, Zhang Z, You C, Hussain A, Xia X. Computer-Aided Reconstruction and Application of Bacillus halodurans S7 Xylanase with Heat and Alkali Resistance. J Agric Food Chem 2024; 72:1213-1227. [PMID: 38183306 DOI: 10.1021/acs.jafc.3c08221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2024]
Abstract
β-1,4-Endoxylanase is the most critical hydrolase for xylan degradation during lignocellulosic biomass utilization. However, its poor stability and activity in hot and alkaline environments hinder its widespread application. In this study, BhS7Xyl from Bacillus halodurans S7 was improved using a computer-aided design through isothermal compressibility (βT) perturbation engineering and by combining three thermostability prediction algorithms (ICPE-TPA). The best variant with remarkable improvement in specific activity, heat resistance (70 °C), and alkaline resistance (both pH 9.0 and 70 °C), R69F/E137M/E145L, exhibited a 4.9-fold increase by wild-type in specific activity (1368.6 U/mg), a 39.4-fold increase in temperature half-life (458.1 min), and a 57.6-fold increase in pH half-life (383.1 min). Furthermore, R69F/E137M/E145L was applied to the hydrolysis of agricultural waste (corncob and hardwood pulp) to efficiently obtain a higher yield of high-value xylooligosaccharides. Overall, the ICPE-TPA strategy has the potential to improve the functional performance of enzymes under extreme conditions for the high-value utilization of lignocellulosic biomass.
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Affiliation(s)
- Huimin Zhou
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Yongchao Cai
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Mengfei Long
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Nan Zheng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Zehua Zhang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Cuiping You
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Asif Hussain
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Xiaole Xia
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300000, China
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Gong Y, Liu Z, Li Z, Liu C, Yan N, Ma L. Boosting N 2O Decomposition by Fabricating the Cs-O-Co Structure over Co 3O 4 with Single-Layer Atoms of Cs. Environ Sci Technol 2024; 58:906-914. [PMID: 38126778 DOI: 10.1021/acs.est.3c06940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Developing effective catalysts for N2O decomposition at low temperatures is challenging. Herein, the Cs-O-Co structure, as the active species fabricated by single-layer atoms of Cs over pure Co3O4, originally exhibited great catalytic activity of N2O decomposition in simulated vehicle exhaust and flue gas from nitric acid plants. A similar catalytic performance was also observed for Na, K, and Rb alkali metals over Co3O4 catalysts for N2O decomposition, illustrating the prevalence of alkali-metal-promotion over Co3O4 in practical applications. The catalytic results indicated that the TOF of Co3O4 catalysts loaded by 4 wt% Cs was nearly 2 orders of magnitude higher than that of pure Co3O4 catalysts at 300 °C. Interestingly, the conversions of N2O decomposition over Co3O4 catalysts doped by the same Cs loadings were significantly inhibited. Characterization results indicated that the primary active Cs-O-Co structure was formed by highly orbital hybridization between the Cs 6s and the O 2p orbital over the supported Co3O4 catalysts, where Cs could donate electrons to Co3+ and produce much more Co2+. In contrast, the doped Co3O4 catalysts were dominated by Cs2O2 species; meanwhile, CsOH species was generated by adsorbed water vapor led to a significant decrease in catalytic activity. In situ DRIFTS, rigorous kinetics, and DFT results elaborated the reaction mechanism of N2O decomposition, where the direct decomposition of adsorbed N2O was the kinetically relevant step over supported catalysts in the absence of O2. Meanwhile, the assistance of adsorbed N2O decomposition by activated oxygen was observed as the kinetically relevant step in the presence of O2. The results may pave a promising path toward developing alkali-metal-promotion catalysts for efficient N2O decomposition.
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Affiliation(s)
- Yuanyu Gong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhisong Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zihao Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Caixia Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Naiqiang Yan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lei Ma
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Fu F, Luo J, Zhao L, Yang F, Wang N. Impact of cellulose and lignin on restoration of vegetation and soil chemical properties for saline-alkali soil of songnen plain. PLoS One 2024; 19:e0296366. [PMID: 38165910 PMCID: PMC10760773 DOI: 10.1371/journal.pone.0296366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 12/12/2023] [Indexed: 01/04/2024] Open
Abstract
To explore the effects of cellulose and lignin on stimulating vegetation restoration and improving soil chemical properties in saline-alkali soil, a large area test was carried out, and 2 treatments were set up: T (cellulose and lignin+ Planted seeds) and CK (Planted seeds). In this study, the species, quantity, plant height, above-ground biomass, biodiversity of vegetation in the treated plots, the determination of soil chemical nutrient content, and the effect of cellulose and lignin on vegetation restoration in saline-alkali land were investigated. The results showed that: 1) Cellulose and lignin contributed to vegetation growth. Compared with CK treatment, plant height and aboveground biomass of T increased by 158.73% and 240.13%, respectively; 2) Cellulose and lignin improved soil structure, and soil porosity, and decreased soil compaction (21.95%); 3) Compared with CK treatment, T treatment decreased soil pH by 0.5 units, total salt content decreased by 30.95%, exchangeable Na+ decreased by 63.00%, and exchangeable sodium percentage (ESP) decreased by 61.51%. Furthermore, cellulose and lignin effectively improved the physical and chemical properties of saline-alkali soil, promoted the recovery of ecological environment in saline-alkali soil, and improved regional biodiversity, which will provide new methods for soil remediation and improvement in saline-alkali areas.
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Affiliation(s)
- Fengzhen Fu
- College of Horticulture and Landscape Architecture, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Jianping Luo
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Longfei Zhao
- College of Horticulture and Landscape Architecture, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Fengjun Yang
- College of Horticulture and Landscape Architecture, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Ning Wang
- College of Horticulture and Landscape Architecture, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs P. R. China, Daqing, Heilongjiang, China
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61
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Devi B, Goswami M, Devi A. Entrapment behaviours of trivalent and hexavalent chromium from aqueous medium using edible alkali-derived activated carbon of Eichhornia crassipes (water hyacinth). Environ Sci Pollut Res Int 2024; 31:6025-6039. [PMID: 38135795 DOI: 10.1007/s11356-023-31545-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023]
Abstract
The study examines the adsorption capabilities of an environmentally friendly activated carbon derived from a novel activating agent, i.e., an edible alkali prepared from black gram plant ash, for the removal of Cr(III) and Cr(VI) ions from an aqueous environment. The results of the systematic research show impressive removal efficiencies of 95.12% for Cr(III) ions and 99.6% for Cr(VI) ions. The kinetics and equilibrium data of the adsorption process confirm to the pseudo-second-order kinetics and Freundlich isotherm model. The thermodynamic analysis reveals the adsorption process as feasible and spontaneous across the temperature range of 298-313 K. The mechanism entails electrostatic attraction and adsorption of Cr(III) and Cr(VI) ions on oppositely charged surfaces and the participation of oxygen-containing functional groups on WHAC-BGA surface in the reduction of Cr(VI) to Cr(III). This study provides valuable insights for optimizing strategies to combat chromium contamination in water sources, offering a sustainable solution with the potential for real-world application.
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Affiliation(s)
- Bhaswati Devi
- Environmental Chemistry Laboratory, Resource Management and Environment Section, Life Science Division, Institute of Advanced Study in Science and Technology, Guwahati, 781035, Assam, India
- Department of Chemistry, Gauhati University, Guwahati, 781014, Assam, India
| | - Manisha Goswami
- Environmental Chemistry Laboratory, Resource Management and Environment Section, Life Science Division, Institute of Advanced Study in Science and Technology, Guwahati, 781035, Assam, India
- Department of Environmental Science, Gauhati University, Guwahati, 781014, Assam, India
| | - Arundhuti Devi
- Environmental Chemistry Laboratory, Resource Management and Environment Section, Life Science Division, Institute of Advanced Study in Science and Technology, Guwahati, 781035, Assam, India.
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Zhao Z, Liu L, Sun Y, Xie L, Liu S, Li M, Yu Q. Combined microbe-plant remediation of cadmium in saline-alkali soil assisted by fungal mycelium-derived biochar. Environ Res 2024; 240:117424. [PMID: 37866531 DOI: 10.1016/j.envres.2023.117424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/05/2023] [Accepted: 10/15/2023] [Indexed: 10/24/2023]
Abstract
Cadmium contamination in saline-alkali soil is becoming a great concern. Combined microbe-plant remediation is an economic way to treat this contamination, but is compromised by its low cadmium-removing capacity. In this study, the novel fungus-derived biochar was prepared to enhance the salt-tolerant bacterium-plant remediation of cadmium-contaminated saline-alkali soil. This biochar was prepared by pre-incubation of living Trichoderma atroviride hyphae with imidazole and further heating at 500 °C for 1 h. The obtained fungus-derived nitrogen-doped biochar (FBioCN) exhibited the high affinity to bacterial cells, leading to efficient colonization of exogenous salt-tolerant bacteria (e.g., Rhizobacter sp. and Sphingomonas sp.) on Amaranthus hypochondriacus roots. During culturing of the plants in the cadmium-contaminated saline-alkali soil, FBioCN drastically remodeled the rhizosphere microbiome, leading to enhance colonization of the exogeneous salt-tolerant bacteria, and increase bacterial diversity. The combination of FBioCN and the exogeneous bacteria further improved the activity of rhizosphere functional enzymes, protected the plants from the multiple stress, and promoted cadmium transport from the soil to the plants. Consequently, FBioCN together with the salt-tolerant bacteria drastically improved cadmium removal from the saline-alkali soil, with the percent of cadmium removal at the rhizosphere region increasing from 35.1% to 95.1%. This study sheds a light on the application of fungus-derived biochar in combined microbe-plant remediation in saline-alkali soil.
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Affiliation(s)
- Zirun Zhao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Lin Liu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ying Sun
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Liling Xie
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Shuo Liu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Mingchun Li
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Qilin Yu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, College of Life Sciences, Nankai University, Tianjin, 300071, China.
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Zhang Y, Gao H, Zhao D, Chen X, Zhu F, Li Y, Xue S. Microbially-driven alkaline regulation: Organic acid secretion behavior of Penicillium oxalicum and charge neutralization in bauxite residue. Environ Res 2024; 240:117489. [PMID: 37890830 DOI: 10.1016/j.envres.2023.117489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 10/29/2023]
Abstract
Microbially-driven alkaline neutralization in bauxite residue by functional microorganisms is a promising approach for the ecological rehabilitation on alkaline disposal areas. However, the alkali resistance and acid secretion mechanism of functional microorganisms are still unknown, which limits their application. Here, saline-alkaline resistance, acid production performance, and differentially expressed genes of Penicillium oxalicum (P. oxalicum, a functional fungus screened from a typical disposal area) were investigated and its bio-neutralization efficiency was evaluated. This fungus exhibited high tolerance to alkalinity (pH 12), and salinity (NaCl 2.0 M), and produced a large amount of oxalic acid to reduce the medium pH to 2.0. Transcriptome showed that alkali stress induced the overexpression of genes related to antioxidant and stress-resistant enzymes (GST, KatE) and glycolytic pathway rate-limiting enzymes (HK). The rate of glycolysis and other organic acid metabolism processes was increased with higher stress resistance of P. oxalicum. The integrated application of P. oxalicum and maize straw accelerated the dissolved organic carbon content and stabilized the leachate pH of bauxite residue at about 7.4. 3DEEM and BIOSEM analysis indicated that P. oxalicum maintained high activity in the residue leachate and continuously decomposed the maize straw for their metabolism. P. oxalicum showed strong alkaline resistance, biomass degradation capacity, and alkaline regulation potential, which should be beneficial for microbial-driven alkaline regulation in bauxite residue.
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Affiliation(s)
- Yifan Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; School of Metallurgy and Environment, Central South University, Changsha 410083, China.
| | - Hui Gao
- China Aluminum Mining Limited Company, Zhengzhou City, Henan Province 450041, China.
| | - Dongliang Zhao
- China Aluminum Mining Limited Company, Zhengzhou City, Henan Province 450041, China.
| | - Xueming Chen
- College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Feng Zhu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China.
| | - Yinsheng Li
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Shengguo Xue
- School of Metallurgy and Environment, Central South University, Changsha 410083, China.
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Luo H, Wang X, You C, Wu X, Pan D, Lv Z, Li T, Zhang D, Shen Z, Zhang X, Liu G, He K, Ye Q, Jia Y, Zhao Q, Deng X, Cao X, Song X, Huang G. Telomere-to-telomere genome of the allotetraploid legume Sesbania cannabina reveals transposon-driven subgenome divergence and mechanisms of alkaline stress tolerance. Sci China Life Sci 2024; 67:149-160. [PMID: 37897613 DOI: 10.1007/s11427-023-2463-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/10/2023] [Indexed: 10/30/2023]
Abstract
Alkaline soils pose an increasing problem for agriculture worldwide, but using stress-tolerant plants as green manure can improve marginal land. Here, we show that the legume Sesbania cannabina is very tolerant to alkaline conditions and, when used as a green manure, substantially improves alkaline soil. To understand genome evolution and the mechanisms of stress tolerance in this allotetraploid legume, we generated the first telomere-to-telomere genome assembly of S. cannabina spanning ∼2,087 Mb. The assembly included all centromeric regions, which contain centromeric satellite repeats, and complete chromosome ends with telomeric characteristics. Further genome analysis distinguished A and B subgenomes, which diverged approximately 7.9 million years ago. Comparative genomic analysis revealed that the chromosome homoeologs underwent large-scale inversion events (>10 Mb) and a significant, transposon-driven size expansion of the chromosome 5A homoeolog. We further identified four specific alkali-induced phosphate transporter genes in S. cannabina; these may function in alkali tolerance by relieving the deficiency in available phosphorus in alkaline soil. Our work highlights the significance of S. cannabina as a green tool to improve marginal lands and sheds light on subgenome evolution and adaptation to alkaline soils.
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Affiliation(s)
- Haofei Luo
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiaofei Wang
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- Hainan Yazhou Bay Seed Lab, Sanya, 572025, China
| | - Changqing You
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuedan Wu
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Duofeng Pan
- Institute of Forage and Grassland Sciences, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Zhiyao Lv
- Hainan Yazhou Bay Seed Lab, Sanya, 572025, China
| | - Tong Li
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Dongmei Zhang
- Institute of Forage and Grassland Sciences, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Zhongbao Shen
- Institute of Forage and Grassland Sciences, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Xiaodong Zhang
- Shandong Academy of Agricultural Sciences, Jinan, 250100, China
- National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying, 257345, China
- Shandong Green Manure Ecological Technology Co., Ltd, Dongying, 257345, China
| | - Guodao Liu
- State Key Laboratory of Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Kaixuan He
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- Hainan Yazhou Bay Seed Lab, Sanya, 572025, China
| | - Qingtong Ye
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yajun Jia
- Hainan Yazhou Bay Seed Lab, Sanya, 572025, China
| | - Qinghua Zhao
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xian Deng
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiaofeng Cao
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xianwei Song
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Gai Huang
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
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Khatua S, Acharya K. Cold Alkali-Extractable Antioxidative Polysaccharide from Russula pseudocyanoxantha (Agaricomycetes), a Novel Mushroom, Stimulates Immune Responses in RAW264.7 Cells by Regulating the TLR/NF-κB Pathway. Int J Med Mushrooms 2024; 26:27-40. [PMID: 38505901 DOI: 10.1615/intjmedmushrooms.2024052488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
In our previous study, we have established Russula pseudocyanoxantha as a unique species, playing a crucial role in indigenous diets through ages. The research also brought attention to bioactive potential of polysaccharide fraction extracted from the unexplored food using hot water. However, residue of the conventional process still contains therapeutic biopolymers that could further be utilized for pharmacological purposes instead of being discarded. Therefore, the current study aims to valorize the solid remnants, contributing to a deeper understanding of the novel taxon. Subsequently, the leftover was treated with cold alkali, leading to the preparation of a high-yield fraction (RP-CAP). Chemical characterization through FT-IR, GC-MS, HPTLC, and spectroscopy demonstrated presence of several monomers in the carbohydrate backbone, predominantly composed of β-glucan. Furthermore, GPC chromatogram indicated presence of a homogeneous polymer with molecular weight of ~ 129.28 kDa. Subsequently, potent antioxidant activity was noted in terms of radical scavenging (O2·-, OH·, DPPH· and ABTS·+), chelating ability, reducing power and total antioxidant activity where EC50 values ranged from 472-3600 μg/mL. Strong immune-boosting effect was also evident, as the biopolymers stimulated murine macrophage cell proliferation, phagocytic activity, pseudopod formation, and NO as well as ROS synthesis particularly at the concentration of 100 μg/mL. In-depth analysis through RT-PCR revealed that the fraction stimulated synthesis of several inflammatory mediators, elucidating the mode of action through TLR/ NF-κB pathway. Therefore, the findings collectively suggest that RP-CAP possesses great potential to serve as a healthimproving component in functional food and pharmaceutical sectors.
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Affiliation(s)
- Somanjana Khatua
- Molecular and Applied Mycology and Plant Pathology Laboratory, Centre of Advanced Study, Department of Botany, University of Calcutta, Kolkata 700019, West Bengal, India; Department of Botany, Krishnagar Government College, Krishnagar 741101, West Bengal, India; Department of Botany, Faculty of Science, University of Allahabad, Prayagraj 211002, Uttar Pradesh, India
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, West Bengal, India
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Bourgeois S, Kovacikova J, Bugarski M, Bettoni C, Gehring N, Hall A, Wagner CA. The B1 H + -ATPase ( Atp6v1b1 ) Subunit in Non-Type A Intercalated Cells is Required for Driving Pendrin Activity and the Renal Defense Against Alkalosis. J Am Soc Nephrol 2024; 35:7-21. [PMID: 37990364 PMCID: PMC10786613 DOI: 10.1681/asn.0000000000000259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/07/2023] [Indexed: 11/23/2023] Open
Abstract
SIGNIFICANCE STATEMENT In the kidney, the B1 H + -ATPase subunit is mostly expressed in intercalated cells (IC). Its importance in acid-secreting type A ICs is evident in patients with inborn distal renal tubular acidosis and ATP6V1B1 mutations. However, the protein is also highly expressed in alkali-secreting non-type A ICs where its function is incompletely understood. We demonstrate in Atp6v1b1 knock out mice that the B1 subunit is critical for the renal response to defend against alkalosis during an alkali load or chronic furosemide treatment. These findings highlight the importance of non-type A ICs in maintaining acid-base balance in response to metabolic challenges or commonly used diuretics. BACKGROUND Non-type A ICs in the collecting duct system express the luminal Cl - /HCO 3- exchanger pendrin and apical and/or basolateral H + -ATPases containing the B1 subunit isoform. Non-type A ICs excrete bicarbonate during metabolic alkalosis. Mutations in the B1 subunit (ATP6V1B1) cause distal renal tubular acidosis due to its role in acid secretory type A ICs. The function of B1 in non-type A ICs has remained elusive. METHODS We examined the responses of Atp6v1b1-/- and Atp6v1b1+/+ mice to an alkali load and to chronic treatment with furosemide. RESULTS An alkali load or 1 week of furosemide resulted in a more pronounced hypokalemic alkalosis in male ATP6v1b1-/- versus Atp6v1b1+/+ mice that could not be compensated by respiration. Total pendrin expression and activity in non-type A ICs of ex vivo microperfused cortical collecting ducts were reduced, and β2 -adrenergic stimulation of pendrin activity was blunted in ATP6v1b1-/- mice. Basolateral H + -ATPase activity was strongly reduced, although the basolateral expression of the B2 isoform was increased. Ligation assays for H + -ATPase subunits indicated impaired assembly of V 0 and V 1 H + -ATPase domains. During chronic furosemide treatment, ATP6v1b1-/- mice also showed polyuria and hyperchloremia versus Atp6v1b1+/+ . The expression of pendrin, the water channel AQP2, and subunits of the epithelial sodium channel ENaC were reduced. CONCLUSIONS Our data demonstrate a critical role of H + -ATPases in non-type A ICs function protecting against alkalosis and reveal a hitherto unrecognized need of basolateral B1 isoform for a proper H + -ATPase complexes assembly and ability to be stimulated.
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Affiliation(s)
- Soline Bourgeois
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Jana Kovacikova
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Milica Bugarski
- Institute of Anatomy, University of Zurich, Zurich, Switzerland
| | - Carla Bettoni
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Nicole Gehring
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Andrew Hall
- Institute of Anatomy, University of Zurich, Zurich, Switzerland
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Jiang Z, Zhang P, Wu Y, Wu X, Ni H, Lu Q, Zang S. Long-term surface composts application enhances saline-alkali soil carbon sequestration and increases bacterial community stability and complexity. Environ Res 2024; 240:117425. [PMID: 37875172 DOI: 10.1016/j.envres.2023.117425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/07/2023] [Accepted: 10/15/2023] [Indexed: 10/26/2023]
Abstract
Organic composts could remediate saline-alkali soils on agricultural land by amending soil micro-environment which is one of the main strategies for resourceful treatment and recycling of livestock manure. However, it was still unknown how long-term surface application of organic composts affects the microhabitat and bacterial community characteristics and assembly processes on the profile. We examined the features of the soil properties, bacterial community, and assembly models after 7-years composts application. Physicochemical indicators, enzyme activities, and bacterial diversity of the saline-alkali farmland were all enhanced by the surface composts application, particularly in the 0-20 cm. The network analysis showed that the surface application of composts significantly enhanced the robustness and topological characteristics of the bacterial community and that bacteria from Acidobacteriota were the keystone of the saline-alkali soils improvement. Composts also greatly increased the ecological niche of the bacterial community, while stochastic processes (mainly dispersal limitation) significantly shaped the bacterial community compared to the control. Structural equation modeling indicated that composts application promoted bacterial community succession, which in turn promoted elevated total organic carbon and improved saline-alkali soils properties. Overall, the study linked the ecological characteristics of soil microhabitats and bacterial communities during the restoration of saline-alkali soils by long-term surface application of composts, providing the management and remediation of saline-alkali agricultural soil with a theoretical foundation and technological support.
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Affiliation(s)
- Ziwei Jiang
- Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions, Harbin Normal University, Harbin 150025, China; Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety, Harbin 150025, China
| | - Pengfei Zhang
- Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions, Harbin Normal University, Harbin 150025, China; Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety, Harbin 150025, China
| | - Yufei Wu
- Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions, Harbin Normal University, Harbin 150025, China; Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety, Harbin 150025, China
| | - Xiaodong Wu
- Cryosphere Research Station on the Qinghai-Tibet Plateau, State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Hongwei Ni
- Heilongjiang Academy of Forestry, Harbin 150040, China
| | - Qian Lu
- College of Life Science and Technology, Harbin Normal University, Harbin 150025, China.
| | - Shuying Zang
- Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions, Harbin Normal University, Harbin 150025, China; Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety, Harbin 150025, China.
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68
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Elshimy AS, Mobarak M, Ajarem JS, Maodaa SN, Bonilla-Petriciolet A, Li Z, Korany MA, Ammar DS, Awad DG, Elberbash SA, Seliem MK. Sodium alginate-modified alkali-activated eggshell/Fe 3O 4 nanoparticles: A magnetic bio-based spherical adsorbent for cationic dyes adsorption. Int J Biol Macromol 2024; 256:128528. [PMID: 38040164 DOI: 10.1016/j.ijbiomac.2023.128528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/19/2023] [Accepted: 11/29/2023] [Indexed: 12/03/2023]
Abstract
Herein, a mixture of eggshell (ES) and magnetite nanoparticles (MNPs) was alkali-activated using NaOH/Na2SiO3 solution and then, impregnated with sodium alginate (SA) to prepare a magnetic bio-based adsorbent (namely SAAES/SA/MNPs) for the decontamination of water containing basic dyes, in particular, methylene blue (MB) and crystal violet (CV). The physicochemical properties of magnetic spheres of SAAES/SA/MNPs were characterized using XRD, FTIR, FESEM, EDX, elemental mapping, TEM, and zeta potential techniques. Dye adsorption equilibrium was studied experimentally at pH 8.0 and 25-55 °C, and a statistical physics multilayer model was applied to understand the removal mechanism of these dyes including the adsorption orientations on the adsorbent surface. The number of adsorbed dye molecules per functional group (n) of this bio-based adsorbent ranged from 0.70 to 0.91, indicating the presence of vertical and horizontal adsorption orientations for these organic molecules at all tested solution temperatures. The calculated saturation adsorption capacities (Qsat) were 332.57-256.62 mg/g for CV and 304.47-240.62 mg/g for MB, and an exothermic adsorption was observed for both adsorbates. The estimated adsorption energies (∆E) were < 25 kJ/mol, confirming that the SAAES/SA/MNPs-dye interactions were governed by physical forces as electrostatic interactions. This bio-based adsorbent was effectively regenerated using ethanol and it can be reused showing a removal of 71 and 74 % of MB and CV, respectively, after fourth adsorption-desorption cycles. Overall, the results of this article suggest the attractive performance of SAAES/SA/MNPs for removing basic dyes from aqueous solutions, thus highlighting the promising potential of this magnetic bio-based adsorbent for sustainable wastewater treatment at an industrial level.
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Affiliation(s)
- Ahmed S Elshimy
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Mohamed Mobarak
- Physics Department, Faculty of Science, Beni-Suef University, 62511, Egypt
| | - Jamaan S Ajarem
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saleh N Maodaa
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Zichao Li
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China; Department of Food Science and Engineering, College of Life Sciences, Institute of Biomedical Engineering, Qingdao University, Qingdao 266071, China
| | - Mariam A Korany
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Dina S Ammar
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Dina G Awad
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | | | - Moaaz K Seliem
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt.
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69
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Yang R, Zhang P, Li Y, Wang D, Sun Q, Mao Z, Wang W, He T. Exploration on the occurrence state of fluorine in cement hydration products mixed with high fluorine alkali free liquid accelerator. Environ Sci Pollut Res Int 2024; 31:3105-3122. [PMID: 38072885 DOI: 10.1007/s11356-023-31366-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 11/30/2023] [Indexed: 01/18/2024]
Abstract
If there was abundant fluorine in shotcrete, it might leach out and pollute the soil or migrate to corrode the reinforcement.Therefore, this research mainly investigated the basic properties of high-fluorine alkali free liquid accelerator (HF-AFA) and its occurrence forms in cement hydration products.The macro-test results showed that with the increase of HF-AFA dosage, it appeared excellent coagulation promoting property. However, when the HF-AFA dosage exceeded 7.0%, the 1d compressive strength of mortar was lower than 7.0 MPa. In addition, by measuring the early hydration heat of cement, C3A, C3S, C2S and C4AF pastes with and without HF-AFA, and combining XRD and SEM micro-analysis, the occurrence forms of fluorine in different clinker minerals were obtained.The final analysis results indicated that fluorine mainly existed in the form of CaF2, CaAlF5 and Ca2AlF7 crystals in C3A and C3S minerals, while only little CaF2 crystals appeared in C2S and C4AF minerals.
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Affiliation(s)
- Renhe Yang
- State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Sciences Research, Beijing, 100041, China.
| | - Pengyu Zhang
- Tianjin Building Materials Academy of Sciences Research, Tianjin, 300381, China
| | - Yang Li
- State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Sciences Research, Beijing, 100041, China
| | - Dongmei Wang
- Tianjin Building Materials Academy of Sciences Research, Tianjin, 300381, China
| | - Qian Sun
- Tianjin Building Materials Academy of Sciences Research, Tianjin, 300381, China
| | - Zhiyi Mao
- Tianjin Building Materials Academy of Sciences Research, Tianjin, 300381, China
| | - Wanshen Wang
- Tianjin Building Materials Academy of Sciences Research, Tianjin, 300381, China
| | - Tingshu He
- College of Materials Science and Engineering, Xi'an University of Architecture & Technology, Xi'an, 710055, Shaanxi, China
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70
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Hu F, Fu N, Wei Q, Liu S, Hu Y, Zhang S, Wang X, Peng X, Dai H, Wei Y. Effect of alkali pretreatment time on kitchen waste anaerobic digestion performance enhanced by alkali pretreatment combined with bentonite: performance enhancement, microbial community structure, and functional gene analysis. Environ Sci Pollut Res Int 2024; 31:7167-7178. [PMID: 38157170 DOI: 10.1007/s11356-023-31646-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/17/2023] [Indexed: 01/03/2024]
Abstract
Kitchen waste was mainly composed of carbohydrates, lipids, and proteins. Anaerobic digestion (AD) of kitchen waste usually occurred acidification and further deteriorated. In our previous study, alkali pretreatment combined with bentonite (AP/Be) treatment was proved to enhance high solid AD of kitchen waste. However, effects of AP time on AP/Be were not yet studied. This study investigated the effects of AP time on AP/Be treatment on enhancing high solid AD. The results showed that compared with the control group, the cumulative methane production rate could be increased by 3.30 times (149.7 mL CH4/g VS) and the volatile solids (VS) reduction rate increased by 63.36%. Microbial community analysis showed that the relative abundance of Methanosarcina and Methanosaeta were increased from 6.49 and 7.83% to 47.14 and 16.39% respectively. Predictive functional analysis showed that AP/Be treatment increased the abundance of energy production and conversion, coenzyme transport, and metabolism. This study revealed the potential mechanism of AP/Be enhanced kitchen waste AD performance and AP/Be was a potential strategy to strengthen AD.
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Affiliation(s)
- Fengping Hu
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
| | - Ningxin Fu
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
| | - Qun Wei
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
| | - Susu Liu
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China.
- Jiangxi Province Zhonggantou Survey and Design Co., Ltd, Nanchang, 330000, China.
| | - Yuying Hu
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
| | - Shihao Zhang
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
| | - Xin Wang
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
| | - Xiaoming Peng
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
| | - Hongling Dai
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
| | - Yang Wei
- School of Civil Engineering and Architecture, East China JiaoTong University, Nanchang, 330013, China
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71
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Sun X, Xu X, Wang X, Tang T, Zhang W, Ma Y. Characteristics of inhibitory active substances produced by Pseudoalteromonas SW-1. New Microbiol 2024; 46:354-360. [PMID: 38252046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 01/22/2024] [Indexed: 01/23/2024]
Abstract
To confirm the antagonistic activity characterization of the strain Pseudoalteromonas SW-1 (P. SW-1), its cell-free supernatant (CFS) was studied against a clam pathogenic strain of Vibrio Alginolyticu MP-1 (V.MP-1). The CFS of P. SW-1 exhibited evident antagonistic activities against the pathogens, and the absorbance value (600 nm) of V. MP-1 remained at a lower level at 24 h when compared with the control. The results showed that the inhibitory activities of strain P. SW-1 CFS showed differences after treatment with heat, acid and alkali, and proteinase K. The CFS of P. SW-1 inhibitory activities decreased after treatment with heat, but the inhibitory activities of strain P. SW-1 CFS were still effective after treatment with proteinase K for 24 h. The acid and alkali treatments could increase the inhibitory activities of strain P. SW-1 CFS. Therefore, the ammonium sulfate precipitation test also indicated that P. SW-1 could produce some active protein compounds to antagonize pathogenic V. MP-1.
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Affiliation(s)
- Xing Sun
- School of Biological Science and Food Engineering, Chu Zhou University
| | - Xin Xu
- School of Biological Science and Food Engineering, Chu Zhou University
| | - Xuhui Wang
- School of Biological Science and Food Engineering, Chu Zhou University
| | - Tongtong Tang
- School of Biological Science and Food Engineering, Chu Zhou University
| | - Weiwei Zhang
- School of Biological Science and Food Engineering, Chu Zhou University
| | - Yuhua Ma
- School of Biological Science and Food Engineering, Chu Zhou University
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72
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Kang Y, Lu X, Xu J, Zhou Q, Zhang G, Xin J, Yan D, Sayed IEITEI. The ionic liquids upon perchlorate to promote the C-C/C-O bonds cleavage in alkali lignin under photothermal synergism. Int J Biol Macromol 2024; 255:128125. [PMID: 37984571 DOI: 10.1016/j.ijbiomac.2023.128125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/27/2023] [Accepted: 11/03/2023] [Indexed: 11/22/2023]
Abstract
Transforming lignin into aromatic monomers is critically attractive to develop green and sustainable energy supplies. However, the usage of the additional catalysts like metal or base/acid is commonly limited by the caused repolymerized and environmental issues. The key step is to mediate electron transfer in lignin to trigger lignin C-C/C-O bonds cleavage without the catalysts mentioned above. Here, we report that the ionic liquids [BMim][ClO4] was found to trigger lignin electron transfer to cleave the C-C/C-O bonds for aromatic monomers without any additional catalyst. The proton transfer from [BMim]+ to [ClO4]- could polarize the anion and decrease its structure stability, upon which the active hydroxyl radical generated and induced lignin C-C/C-O bonds fragmentation via free radical-mediated routes with the assistance of photothermal synergism. About 4.4 wt% yields of aromatic monomers, mainly composed of vanillin and acetosyringone, are afforded in [BMim][ClO4] under UV-light irradiation in the air at 80 °C. This work opens the way to produce value-added aromatic monomers from lignin using an eco-friendly, energy-efficient, and simple route that may contribute to the sustainable utilization of renewable natural resources.
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Affiliation(s)
- Ying Kang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Xingmei Lu
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100190, China.
| | - Junli Xu
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Qing Zhou
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Guangjin Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
| | - Jiayu Xin
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Dongxia Yan
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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73
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Boopathi G, Ragavan R, Jaimohan SM, Sagadevan S, Kim I, Pandurangan A, Sivaprakash P. Mesoporous graphitic carbon electrodes derived from boat-fruited shells of Sterculia Foetida for symmetric supercapacitors for energy storage applications. Chemosphere 2024; 348:140650. [PMID: 37951405 DOI: 10.1016/j.chemosphere.2023.140650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/06/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
In recent years, intensive research efforts have focused on translating biomass waste into value-added carbon materials broadcasted for their significant role in energy and environmental applications. For the first time, high-performance carbonaceous materials for energy storage applications were developed from the multi-void structure of the boat-fruited shells of Sterculia Foetida (SF). In that view, synthesized mesoporous graphitic activated carbon (g-AC) via the combination of carbonization at various elevating temperatures of 700, 800, and 900 °C, respectively, and alkali activation by KOH, with a high specific surface area of 1040.5 m2 g-1 and a mesopore volume of 0.295 cm3 g-1. In a three-electrode configuration, the improved electrode (SF-K900) exhibited excellent electrochemical behavior, which was observed in an aqueous electrolyte (1 M H2SO4) with a high specific capacitance of 308.6 F/g at a current density of 1 A/g, owing to the interconnected mesopore structures and high surface area of SF-K900. The symmetric supercapacitor (SSC) delivered the specific capacitance of 138 F/g at 1 A/g with a high energy density (ED) of 13.4 Wh/kg at the power density (PD) of 24.12 kW/kg with remarkable cycle stability and supercapacitive retention of 93% over 5000 cycles. Based on the findings, it is possible to develop low-cost active electrode materials for high-rate performance SSC using mesoporous g-AC derived from SF boat-fruited shells.
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Affiliation(s)
- G Boopathi
- Department of Chemistry, Anna University, Chennai, 600025, India
| | - R Ragavan
- Department of Chemistry, Anna University, Chennai, 600025, India
| | - S M Jaimohan
- Advanced Materials Laboratory, Central Leather Research Institute, Chennai, 600020, India
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Ikhyun Kim
- Department of Mechanical Engineering, Keimyung University, Daegu, 42601, Republic of Korea
| | - A Pandurangan
- Department of Chemistry, Anna University, Chennai, 600025, India.
| | - P Sivaprakash
- Department of Mechanical Engineering, Keimyung University, Daegu, 42601, Republic of Korea
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74
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Mohanta M, Ramdhun Y, Thirugnanam A, Gupta R, Verma D, Deepak T, Babu AR. Biodegradable AZ91 magnesium alloy/sirolimus/poly D, L-lactic-co-glycolic acid-based substrate for cardiovascular device application. J Biomed Mater Res B Appl Biomater 2024; 112:e35350. [PMID: 37966681 DOI: 10.1002/jbm.b.35350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 09/26/2023] [Accepted: 10/30/2023] [Indexed: 11/16/2023]
Abstract
Biodegradable drug-eluting stents (DESs) are gaining importance owing to their attractive features, such as complete drug release to the target site. Magnesium (Mg) alloys are promising materials for future biodegradable DESs. However, there are few explorations using biodegradable Mg for cardiovascular stent application. In this present study, sirolimus-loaded poly D, L-lactic-co-glycolic acid (PLGA)-coated/ sirolimus-fixed/AZ91 Mg alloy-based substrate was developed via a layer-by-layer approach for cardiovascular stent application. The AZ91 Mg alloy was prepared through the squeeze casting technique. The casted AZ91 Mg alloy (Mg) was alkali-treated to provide macroporous networks to hold the sirolimus and PLGA layers. The systematic characterization was investigated via electrochemical, optical, physicochemical, and in-vitro biological characteristics. The presence of the Mg17 Al12 phase in the Mg sample was found in the x-ray diffraction system (XRD) spectrum which influences the corrosion behavior of the developed substrate. The alkali treatment increases the substrate's hydrophilicity which was confirmed through static contact angle measurement. The anti-corrosion characteristic of casted-AZ91 Mg alloy (Mg) was slightly less than the sirolimus-loaded PLGA-coated alkali-treated AZ91 Mg alloy (Mg/Na/S/P) substrate. However, dissolution rates for both substrates were found to be controlled at cell culture conditions. Radiographic densities of AZ91 Mg alloy substrates (Mg, Mg/Na, and Mg/Na/S/P) were measured to be 0.795 ± 0.015, 0.742 ± 0.01, and 0.712 ± 0.017, respectively. The star-shaped structure of 12% sirolimus/PLGA ensures the bioavailability of the drugs. Sirolimus release kinetic was fitted up to 80% with the "Higuchi model" for Mg samples, whereas Mg/Na/S/P showed 45% fitting with a zero-order mechanism. The Mg/Na/S/P substrate showed a 70% antithrombotic effect compared to control. Further, alkali treatment enhances the antibacterial characteristic of AZ91 Mg alloy. Also, the alkali-treated sirolimus-loaded substrates (Mg/Na/S and Mg/Na/S/P) inhibit the valvular interstitial cell's growth significantly in in-vitro. Hence, the results imply that sirolimus-loaded PLGA-coated AZ91 Mg alloy-based substrate can be a potential candidate for cardiovascular stent application.
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Affiliation(s)
- Monalisha Mohanta
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Yugesh Ramdhun
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Arunachalam Thirugnanam
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Ritvesh Gupta
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Devendra Verma
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Thirumalai Deepak
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Anju R Babu
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
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75
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Ma R, Wang G, Sun Q. Preparation and strength formation mechanism of alkali-stimulated spontaneous combustion gangue-granulated blast furnace slag backfill. Environ Sci Pollut Res Int 2024; 31:723-739. [PMID: 38017215 DOI: 10.1007/s11356-023-30893-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 11/01/2023] [Indexed: 11/30/2023]
Abstract
Spontaneous combustion gangue (SCG) is often used as aggregate in traditional cemented paste backfill (CPB) for mine backfill, but the activation of SCG is insufficient. To stimulate the activity of SCG for the preparation of spontaneous combustion gangue-granulated blast furnace slag backfill (SGB), a new CPB was prepared by activating SCG via a mechanochemical composite activation method and adding ground granulated blast furnace slag (GGBS) to improve its activity. The mixing ratio was optimized by the response surface method and satisfaction function, and the strength formation mechanism was analyzed by scanning electron microscopy-energy dispersive spectrometer (SEM-EDS) and Fourier transform infrared spectroscopy (FTIR). The results showed that SCG had a certain pozzolanic activity, and the optimal grinding time was 30 min. The optimal mix ratio was 82.58% mass concentration, 2.93% alkali content, 30% GGBS content, and 52.92% fine gangue rate. Calcium silicate hydrate (C-S-H) gel and calcium aluminate sulfate hydrate (C-A-S-H) gel were the main reaction products of backfill, and with increasing curing age, C-S-H gel in the reaction system was gradually converted into C-A-S-H gel. FTIR analysis results showed that there were H-O-H, Si-O, and Si-O-T (T was Si or Al) bonds in the product, indicating that C-S-H gel and C-A-S-H gel were formed in the product. A new damage constitutive model was developed. The damage constitutive model could completely describe the backfill stress-strain curve. The study verified the feasibility of preparing cemented paste backfill with SCG and GGBS, which was beneficial to clean coal mine production and environmental protection.
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Affiliation(s)
- Ruifeng Ma
- School of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China
- Resource Utilization of Coal Gangue and Energy-Saving Building Materials, Liaoning Provincial Key Laboratory, Liaoning Technical University, Fuxin, 123000, China
| | - Gujian Wang
- School of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China
- Resource Utilization of Coal Gangue and Energy-Saving Building Materials, Liaoning Provincial Key Laboratory, Liaoning Technical University, Fuxin, 123000, China
| | - Qi Sun
- School of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China.
- Resource Utilization of Coal Gangue and Energy-Saving Building Materials, Liaoning Provincial Key Laboratory, Liaoning Technical University, Fuxin, 123000, China.
- School of Architecture and Transportation, Liaoning Technical University, No.88 Yulong Road, Fuxin, 123000, Liaoning Province, China.
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76
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Zhang J, Ge Y, Li Z. Catalytic hydrothermal liquefaction of alkali lignin for monophenols production over homologous biochar-supported copper catalysts in water. Int J Biol Macromol 2023; 253:126656. [PMID: 37660845 DOI: 10.1016/j.ijbiomac.2023.126656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/08/2023] [Accepted: 08/30/2023] [Indexed: 09/05/2023]
Abstract
Constructing an advanced catalytic system for the purposeful liquefaction of lignin into chemicals has presented a significant prospect for sustainable development. In this work, the catalytic process of mesoporous homologous biochar (HBC) derived from alkali lignin supported copper catalysts (Cu/HBC) was reported for catalytic liquefaction of alkali lignin to monophenols. The characterization results revealed HBC promoted the formation of metal-support strong interaction and the generation of oxygen vacancies, enhancing the acid sites of Cu/HBC. Under the optimal conditions (0.2 g alkali lignin, 280 °C, 0.05 g Cu/HBC, 6 h, 18 mL water), the monophenol yield reached 75.01 ± 0.76 mg/g, and the bio-oil yield was 57.98 ± 1.76%. The copious mesopores, high surface area, and rich acidic sites were responsible for the high activity of Cu/HBC, which significantly outperformed the controlled catalysts, such as HBC, commercial activated carbon (AC), and reported Ni/AC, Ni/MCM-41, etc. In four consecutive runs, the catalytic performance of Cu/HBC was only reduced by 3.65% per cycle. Interestingly, catechol was selectively produced with Cu/HBC, which provided an effective strategy for the conversion of G/S-type lignin to catechyl phenolics (C-type). These findings indicate that the Cu/HBC will be a promising substitution of noble metal-supported catalysts for conversion biomass into high value-added phenolics.
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Affiliation(s)
- Jiubing Zhang
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, 100 Daxuedong Road, Nanning, 530004, China; Guangxi Academy of Sciences, Nanning 530007, China
| | - Yuanyuan Ge
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, 100 Daxuedong Road, Nanning, 530004, China
| | - Zhili Li
- School of Chemistry & Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, 100 Daxuedong Road, Nanning, 530004, China.
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77
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Xu X, Guo L, Wang S, Wang X, Ren M, Zhao P, Huang Z, Jia H, Wang J, Lin A. Effective strategies for reclamation of saline-alkali soil and response mechanisms of the soil-plant system. Sci Total Environ 2023; 905:167179. [PMID: 37730027 DOI: 10.1016/j.scitotenv.2023.167179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/16/2023] [Accepted: 09/16/2023] [Indexed: 09/22/2023]
Abstract
The combination of amendments has emerged as a potential strategy to efficiently alleviate salt stress in saline-alkali soil. However, knowledge regarding how to optimize the proportion of different amendment materials, comprehensively assess the contribution of each component, and clarify the response mechanisms of the amendment-saline-alkali soil-plant system is incomplete. Based on this, we conducted a pot experiment to evaluate the improvement effect of the combined application of different amendment materials at varying levels and the contribution of the amendment components to alleviating salt stress. Overall, T6 exhibited the most significant improvement effect on the physicochemical and biological properties of the saline-alkali soil and promoted the growth of oilseed rape, with the levels of 2.0 % phosphogypsum, 2.0 % humic acid, 0.25 % bentonite, and 0.03 % sodium carboxymethyl cellulose. Compared with the control group, the EC decreased by 1.51 % to 33.49 %, the soil salt content dropped by 11.40 % to 35.46 %, and the soil soluble Na + concentration significantly declined by 39.47 % to 63.20 %. Additionally, the soil nutrient content and soil microbial community structure were enhanced in treatment groups. Meanwhile, amendments alleviated salt stress in the oilseed rape plant by activating anti-oxidative enzymes and osmoregulatory substances such as soluble sugar and proline, thus improving their ability to remove reactive oxygen species (ROS). The anti-oxidative enzymes such as superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were significantly increased, with an increase of 10.68 % (SOD, T2) ∼207.31 % (CAT, T6) compared to the control group. The structural equation modeling (SEM) analysis and simulation experiments indicated that the amendment components synergically promoted the amelioration effect on salt stress, and effectively improved soil properties, which affected the response of oilseed rape to soil environment. This research paper provides the relevant reference for the combined application of different amendment materials for soil reclamation.
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Affiliation(s)
- Xin Xu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Lin Guo
- Shanxi Construction Engineering Group Co., Ltd., Taiyuan 030000, PR China
| | - Shaobo Wang
- Shanxi Construction Engineering Group Co., Ltd., Taiyuan 030000, PR China
| | - Xuanyi Wang
- Engineering of Fluid Mechanics, Coastal and Built Environments, Imperial College London, London SW7 2AZ, UK
| | - Meng Ren
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Pengjie Zhao
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Ziyi Huang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Hongjun Jia
- Shanxi Construction Engineering Group Co., Ltd., Taiyuan 030000, PR China
| | - Jinhang Wang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
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78
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Zhou Y, Zhang X, Deng J, Li C, Sun K, Luo X, Yuan S. Adsorption and mechanism study for phenol removal by 10% CO 2 activated bio-char after acid or alkali pretreatment. J Environ Manage 2023; 348:119317. [PMID: 37857218 DOI: 10.1016/j.jenvman.2023.119317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/26/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023]
Abstract
The development of an efficient bio-char used to remove phenol from wastewater holds great importance for environmental protection. In this work, wheat straw bio-char (BC) was acid-washed by HF and activated at 900 °C with 10% CO2 to obtain bio-char (B-Ⅲ-0.1D900). Adsorption experiments revealed that B-Ⅲ-0.1D900 achieved a remarkable phenol removal efficiency of 90% within 40 min. Despite its relatively low specific surface area of 492.60 m2/g, it exhibited a high maximum adsorption capacity of 471.16 mg/g. Furthermore, B-Ⅲ-0.1D900 demonstrated a good regeneration capacity for at least three cycles (90.71%, 87.54%, 84.36%). It has been discovered that HF washing, which removes AAEM and exposes unsaturated functional groups, constitutes one of the essential prerequisites for enhancing CO2 activation efficiency at high temperatures. After 10% CO2 activation, the mesoporous structure exhibited substantial development, facilitating enhanced phenol infiltration into the pores when compared to untreated BC. The increased branching of the bio-char culminated in a more complete aromatic system, which enhances the π-π forces between the bio-char and the phenol. The presence of tertiary alcohol structure enhances the hydrogen bonding forces, thereby promoting intermolecular multilayer adsorption of phenol. With the combination of various forces, B-Ⅲ-0.1D900 has a good removal capacity for phenol. This work provides valuable insights into the adsorption of organic pollutants using activated bio-char.
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Affiliation(s)
- Yujie Zhou
- School of Chemical Science and Engineering, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, National Center for Experimental Chemistry and Chemical Engineering Education Demonstration, Yunnan Provincial Key Laboratory of Carbon Neutral and Green Low-Carbon Technology, Yunnan University, No. 2, Cuihu North Road, 650091 Kunming, Yunnan, China
| | - Xiaoguo Zhang
- School of Chemical Science and Engineering, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, National Center for Experimental Chemistry and Chemical Engineering Education Demonstration, Yunnan Provincial Key Laboratory of Carbon Neutral and Green Low-Carbon Technology, Yunnan University, No. 2, Cuihu North Road, 650091 Kunming, Yunnan, China
| | - Jin Deng
- School of Chemical Science and Engineering, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, National Center for Experimental Chemistry and Chemical Engineering Education Demonstration, Yunnan Provincial Key Laboratory of Carbon Neutral and Green Low-Carbon Technology, Yunnan University, No. 2, Cuihu North Road, 650091 Kunming, Yunnan, China
| | - Chun Li
- School of Chemical Science and Engineering, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, National Center for Experimental Chemistry and Chemical Engineering Education Demonstration, Yunnan Provincial Key Laboratory of Carbon Neutral and Green Low-Carbon Technology, Yunnan University, No. 2, Cuihu North Road, 650091 Kunming, Yunnan, China
| | - Keyuan Sun
- School of Chemical Science and Engineering, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, National Center for Experimental Chemistry and Chemical Engineering Education Demonstration, Yunnan Provincial Key Laboratory of Carbon Neutral and Green Low-Carbon Technology, Yunnan University, No. 2, Cuihu North Road, 650091 Kunming, Yunnan, China
| | - Xiaodong Luo
- School of Chemical Science and Engineering, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, National Center for Experimental Chemistry and Chemical Engineering Education Demonstration, Yunnan Provincial Key Laboratory of Carbon Neutral and Green Low-Carbon Technology, Yunnan University, No. 2, Cuihu North Road, 650091 Kunming, Yunnan, China
| | - Shenfu Yuan
- School of Chemical Science and Engineering, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, National Center for Experimental Chemistry and Chemical Engineering Education Demonstration, Yunnan Provincial Key Laboratory of Carbon Neutral and Green Low-Carbon Technology, Yunnan University, No. 2, Cuihu North Road, 650091 Kunming, Yunnan, China.
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Ferrazzo ST, Tonini de Araújo M, Bruschi GJ, Korf EP, Levandoski WMK, Pereira Dos Santos C, Consoli NC. Metal encapsulation of waste foundry sand stabilized with alkali-activated binder: Batch and column leaching tests. J Environ Manage 2023; 348:119287. [PMID: 37852081 DOI: 10.1016/j.jenvman.2023.119287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 10/20/2023]
Abstract
Waste stabilization processes are important to add value and reduce environmental risks related to metal contamination of soils and groundwater. This study evaluated the metal encapsulation of: (i) waste foundry sand (WFS) stabilized with an alkali-activated binder (AAB), compared to (ii) WFS-Portland cement (PC) mixture. The AAB was composed by sugar cane bagasse ash (SCBA), hydrated eggshell lime, and sodium hydroxide solution. The metal leaching behavior from WFS-AAB and WFS-PC was investigated through batch and column tests according to NBR 10005 and ASTM D4874 methods, respectively. All WFS-AAB and WFS-PC mixtures showed no metal toxicity. WFS-AAB matrices encapsulated the heavy metals Cd, Cr, and Pb from WFS and SCBA. Leaching results from NBR 10005 method were more favorable than ASTM D4874 for water quality limits (CONAMA 460, Dutch List, and EPA). Binder type, metals leaching patterns, and leaching test procedures were key factors in understanding the environmental performance of cemented WFS.
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Affiliation(s)
- Suéllen Tonatto Ferrazzo
- Graduate Program in Civil Engineering, Universidade Federal do Rio Grande Do Sul, Porto Alegre, 90035-190, Brazil.
| | - Mariana Tonini de Araújo
- Graduate Program in Civil Engineering, Universidade Federal do Rio Grande Do Sul, Porto Alegre, 90035-190, Brazil.
| | - Giovani Jordi Bruschi
- Graduate Program in Civil Engineering, Universidade Federal do Rio Grande Do Sul, Porto Alegre, 90035-190, Brazil.
| | - Eduardo Pavan Korf
- Graduate Program in Environmental Science and Technology, Universidade Federal da Fronteira Sul, Erechim, RS, 99700-970, Brazil.
| | | | - Carolina Pereira Dos Santos
- Graduate Program in Civil Engineering, Universidade Federal do Rio Grande Do Sul, Porto Alegre, 90035-190, Brazil.
| | - Nilo Cesar Consoli
- Graduate Program in Civil Engineering, Universidade Federal do Rio Grande Do Sul, Porto Alegre, 90035-190, Brazil.
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80
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Peng WY, Wang F, Yang SJ, Sun QY, Zhou HS, Li X, Jiang ZX, Zhou SY. Therapeutic effects of a novel venom abstract (ZK002) solution in an alkali-burned corneal wound-healing model. Mol Vis 2023; 29:317-328. [PMID: 38264612 PMCID: PMC10805332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 12/10/2023] [Indexed: 01/25/2024] Open
Abstract
Purpose Corneal alkali burns can progress to corneal epithelial defects, inflammation, scarring, and angiogenesis, potentially leading to blindness. Therefore, we examined the therapeutic effects of a novel ophthalmic solution (ZK002) on wound healing in alkali-burned rat corneas. Methods In this study, we attempted to treat alkali-exposed rat corneas using topical application of either an ophthalmic solution with ZK002 or an anti-vascular endothelial growth factor agent for 14 days. We evaluated corneal edema, corneal neovascularization area, and histological changes. We also assessed the inflammatory (MMP-9, MMP-2, and interleukin-1β) and angiogenic (vascular endothelial growth factor receptor 2, VEGFR2) markers. Levels of inflammatory (matrix metalloproteinase (MMP)-9, MMP-2, and interleukin-1β), profibrotic (α-smooth muscle actin, α-SMA; transforming growth factor-β2,TGF-β2), and angiogenic (vascular endothelial growth factor-receptor 2, VEGFR2) factors, as well as peroxisome proliferator-activated receptor γ (PPARγ) mRNA expression, were measured. Results The analyses showed that alkali exposure caused an increase in corneal edema and fibrosis with corneal neovascularization. The accumulation of α-smooth muscle actin-positive myofibroblasts and the deposition of transforming growth factor-β2 on the alkali-exposed corneas were noted on day 14. The mRNA expression levels of interleukin-1β, MMP-9, MMP-2, VEGFR2, and profibrotic factors were decreased in the ZK002 group compared with the control group during the early period of corneal alkali burns on day 14. However, the expression level of PPARγ mRNA was increased in the ZK002 group. Conclusions ZK002 decreased the fibrotic reaction and prevented neovascularization in the cornea after an alkali burn. Therefore, the novel ophthalmic solution ZK002 could be a potentially promising therapeutic clinical treatment for corneal wound healing.
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Affiliation(s)
- Wen-yan Peng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Fei Wang
- The second hospital of Anhui medical university, Hefei, China
| | - Shuang-jian Yang
- Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Limited, Guangzhou, China
| | - Qin-yan Sun
- Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Limited, Guangzhou, China
| | - Heng-shen Zhou
- Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Limited, Guangzhou, China
| | - Xiaoyi Li
- Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Limited, Guangzhou, China
| | | | - Shi-you Zhou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
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81
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Chankhunthod N, Junploy P, Suthirakun S, Ngamwongwan L, Phromma C, Ruchusartsawat N, Siyasukh A, Yanu P, Kijjanapanich P, Yimklan S, Rujiwatra A, Drummond-Brydson R, Chimupala Y. Ecofriendly alkali metal cations diffusion improves fabrication of mixed-phase titania polymorphs on fixed substrate by chemical vapor deposition (CVD) for photocatalytic degradation of azo dye. Environ Res 2023; 239:117347. [PMID: 37821062 DOI: 10.1016/j.envres.2023.117347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 09/12/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
Controlling the nanoscale synthesis of semiconductor TiO2 on a fixed substrate has fascinated the curiosity of academics for decades. Synthesis development is required to give an easy-to-control technique and parameters for TiO2 manufacture, leading to advancements in prospective applications such as photocatalysts. This study, mixed-phase TiO2(B)/other titania thin films were synthesized on a fused quartz substrate utilizing a modified Chemical vapor depodition involving alkali-metal ions (Li+, Na+, and K+) solution pre-treatment. It was discovered that different cations promote dramatically varied phases and compositions of thin films. The films had a columnar structure with agglomerated irregular-shaped particles with a mean thickness of 800-2000 nm. Na+ ions can promote TiO2(B) more effectively than K+ ions, however Li+ ions cannot synthesize TiO2(B). The amounts of TiO2(B) in thin films increase with increasing alkali metal (K+ and Na+) concentration. According to experimental and DFT calculations, the hypothesized TiO2(B) production mechanism happened via the meta-stable intermediate alkaline titanate transformation caused by alkali-metal ion diffusion. The mixed phase of TiO2(B) and anatase TiO2 on the fixed substrate (1 × 1 cm2) obtained from Na+ pre-treated procedures showed significant photocatalytic activity for the degradation of methylene blue. K2Ti6O12, Li2TiO3, Rutile TiO2, and Brookite TiO2 phase formations produced by K+ and Li + pretreatment are low activity photocatalysts. Photocatalytic activities were more prevalent in NaOH pre-treated samples (59.1% dye degradation) than in LiOH and KOH pre-treated samples (49.6% and 34.2%, respectively). This revealed that our developed CVD might generate good photocatalytic thin films of mixed-phase TiO2(B)/anatase TiO2 on any substrate, accelerating progress in future applications.
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Affiliation(s)
- Navadecho Chankhunthod
- Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand; Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTECH-KKU RNNon Nanomaterials Research and Innovation for Energy, Khon Kaen University, 40002, Thailand
| | - Patcharanan Junploy
- Department of Chemistry, Faculty of Science and Technology, Chiang Mai Rajabhat University, Chiang Mai, Thailand
| | - Suwit Suthirakun
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Lappawat Ngamwongwan
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Chitsanupong Phromma
- Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nantawat Ruchusartsawat
- Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Adisak Siyasukh
- Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Pattama Yanu
- Chiang Mai University Demonstration School, Faculty of Education, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Pimluck Kijjanapanich
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Saranphong Yimklan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Apinpus Rujiwatra
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Rik Drummond-Brydson
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom.
| | - Yothin Chimupala
- Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai, 50200, Thailand.
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82
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Bikmurzin R, Maršalka A, Kalėdienė L. Solid-State 13C Nuclear Magnetic Resonance Study of Soluble and Insoluble β-Glucans Extracted from Candida lusitaniae. Molecules 2023; 28:8066. [PMID: 38138557 PMCID: PMC10745363 DOI: 10.3390/molecules28248066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
β-glucans are widely known for their biological activities. However, the choice of extraction method can significantly influence their structural characteristics, thereby potentially impacting their biological functions. In this paper, three fractions of β-glucans were obtained from Candida lusitaniae yeast via alkali and hot-water extraction methods and were analyzed using solid-state 13C nuclear magnetic resonance (NMR) spectroscopy. Solid-state NMR spectroscopy was used as a nondestructive technique that preserves the structure of the analyzed molecules. The results suggest that differences in the β-glucan structure are affected by the choice of extraction method. The main difference occurred in the 82-92 ppm region with signal presence suggesting that β-glucans have a linear structure when hot-water-extracted, which is absent in alkali-extracted fractions resulting in the acquisition of β-glucans with an ordered, possibly helical structure. A hot-water extracted water-insoluble (HWN) fraction consists of linear β-1,3-glucans with other signals indicating the presence of β-1,6-linked side chains, chitin and small amounts of α-glucan impurities. For those that are alkali-extracted, alkali-insoluble (AN) and water-soluble (AWS) fractions are structurally similar and consist of an ordered β-1,3-glucan structure with β-1,6-linked side chains and a significant amount of α-glucan and chitin in both fractions.
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Affiliation(s)
- Ruslan Bikmurzin
- Department of Microbiology and Biotechnology, Institute of Biosciences, Life Sciences Center, Vilnius University, Saulėtekio Ave. 7, LT-10257 Vilnius, Lithuania
- Department of Medical Technology and Dietetics, Faculty of Health Care, Vilniaus Kolegija/Higher Education Institution, Didlaukio Str. 45, LT-08303 Vilnius, Lithuania
| | - Arūnas Maršalka
- Institute of Chemical Physics, Faculty of Physics, Vilnius University, Saulėtekio Ave. 3, LT-10257 Vilnius, Lithuania;
| | - Lilija Kalėdienė
- Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
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83
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Shao W, Zhang X, Zhou Z, Ma Y, Chu D, Wang L, Yang Y, Du L, Du Y, Du J, Zhao Q. Genome- and transcriptome-wide identification of trehalose-6-phosphate phosphatases (TPP) gene family and their expression patterns under abiotic stress and exogenous trehalose in soybean. BMC Plant Biol 2023; 23:641. [PMID: 38082382 PMCID: PMC10714469 DOI: 10.1186/s12870-023-04652-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023]
Abstract
BACKGROUND Trehalose-6-phosphate phosphatase (TPP) is an essential enzyme catalyzing trehalose synthesis, an important regulatory factor for plant development and stress response in higher plants. However, the TPP gene family in soybean has not been reported. RESULTS A comprehensive analysis of the TPP gene family identified 18 GmTPPs classified into eight groups based on the phylogenetic relationships and the conservation of protein in six monocot and eudicot plants. The closely linked subfamilies had similar motifs and intron/exon numbers. Segmental duplication was the main driving force of soybean GmTPPs expansion. In addition, analysis of the cis-regulatory elements and promoter regions of GmTPPs revealed that GmTPPs regulated the response to several abiotic stresses. Moreover, RNA-seq and qRT-PCR analysis of the tissue-specific GmTPPs under different abiotic stresses revealed that most GmTPPs were associated with response to different stresses, including cold, drought, saline-alkali, and exogenous trehalose. Notably, exogenous trehalose treatment up-regulated the expression of most TPP genes under saline-alkali conditions while increasing the carbohydrate and trehalose levels and reducing reactive oxygen species (ROS) accumulation in soybean sprouts, especially in the saline-alkali tolerant genotype. Furthermore, the interaction network and miRNA target prediction revealed that GmTPPs interacted with abiotic stress response-related transcription factors. CONCLUSIONS The findings in this study lay a foundation for further functional studies on TPP-based breeding to improve soybean development and stress tolerance.
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Affiliation(s)
- Wenjing Shao
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Xinlin Zhang
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Zhiheng Zhou
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Yue Ma
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Duo Chu
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Lei Wang
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Yiming Yang
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Lin Du
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Yanli Du
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
- National Coarse Cereals Engineering Research Center, Daqing, Heilongjiang, China
| | - Jidao Du
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China.
- National Coarse Cereals Engineering Research Center, Daqing, Heilongjiang, China.
| | - Qiang Zhao
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China.
- National Coarse Cereals Engineering Research Center, Daqing, Heilongjiang, China.
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84
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Patra M, Das D, Dey S, Koschella A, Heinze T. Structural and chemical insights into the prebiotic property of hemicellulosic polysaccharide from Santalum album L. Carbohydr Polym 2023; 321:121291. [PMID: 37739501 DOI: 10.1016/j.carbpol.2023.121291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/02/2023] [Accepted: 08/10/2023] [Indexed: 09/24/2023]
Abstract
Hemicellulose was extracted by alkali treatment of de-pectinated cell wall material of Santalum album L. (sandalwood) suspension culture cells. The physicochemical properties and prebiotic activities of a purified major fraction of Hemicellulose-B, termed as HB-I, were investigated. GC analysis of hydrolyzed and derivatized HB-I showed the presence of arabinose (~64 %), galactose (~16 %) and glucose (~16 %) as major monosaccharide units along with minor amount of rhamnose. Methylation and NMR studies on the purified polysaccharide revealed the presence of 6-β-d-Glcp, β-d-Galp, 3,5-α-l-Araf, α-l-Araf, 5-α-l-Araf, 2,3-α-l-Araf and, α-l-Rhap residues, from which a proposed structure of repeating units was established. The growth of probiotic Lactobacillus spp. strains L. acidophilus, L. casei, L. plantarum and L. rhamnosus was promoted while that of Escherichia coli was suppressed significantly in presence of HB-I. Our results highlight valorization of sandalwood biomass and explore the role of mixed α, β-linked heteroglycan as a potential prebiotic molecule thus indicating the possibility of development of low-cost bioprocesses for production of functional food ingredients.
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Affiliation(s)
- Moumita Patra
- Plant Biotechnology Laboratory, Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Debsankar Das
- Department of Chemistry, Prabhat Kumar College, Contai, Purba Medinipur 721404, West Bengal, India.
| | - Satyahari Dey
- Plant Biotechnology Laboratory, Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Andreas Koschella
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Humboldtstraße 10, D-07743 Jena, Germany.
| | - Thomas Heinze
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Humboldtstraße 10, D-07743 Jena, Germany.
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85
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Xian X, Zhang Z, Li C, Ding L, Guo H, Zhai J, Wang Y. Comprehensive analysis revealed that titanium dioxide nanoparticles could strengthen the resistance of apple rootstock B9 to saline-alkali stress. Funct Plant Biol 2023; 51:FP23126. [PMID: 38128527 DOI: 10.1071/fp23126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023]
Abstract
Apple growth and development can be adversely affected by saline-alkali stress, which has become a significant factor restricting the high yield of the apple industry. In recent years, nanomaterials have become a potential source for plant growth and development. Titanium dioxide nanoparticles (TiO2 NPs) play an important role in multiple plant development processes, including mitigating environmental stress. In this study, one-year-old apple rootstock B9 stem cuttings were used as research objects. Different concentrations of TiO2 NPs were applied to the roots before saline-alkali treatment. Principal component analysis showed that 1gkg-1 TiO2 NPs treatment had the best effect in alleviating the stress for B9. It significantly reduced the damage to B9 under salt-alkali stress, increased the content of photosynthetic pigment, enhanced the performance of Photosystem II, and promoted photosynthesis. At the same time, the content of K+ was increased, and the ion toxicity was alleviated. In addition, TiO2 NPs have also been shown to reduce B9 cell damage and lipid peroxidation, increase antioxidant enzyme activity, and regulate the accumulation of solutes. Overall, this study provides a theoretical basis for TiO2 NPs to mitigate the adverse effects of plants under saline-alkali stress and provides useful insights for managing other plants affected by global salinity and alkalinity.
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Affiliation(s)
- Xulin Xian
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhongxing Zhang
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
| | - Cailong Li
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
| | - Liang Ding
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
| | - Haichao Guo
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
| | - Jietao Zhai
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
| | - Yanxiu Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
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Kilduff S, Hayde N, Viswanathan S, Reidy K, Abramowitz MK. Metabolic acidosis in pediatric kidney transplant recipients. Pediatr Nephrol 2023; 38:4165-4173. [PMID: 37422606 DOI: 10.1007/s00467-023-06072-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 07/10/2023]
Abstract
BACKGROUND Metabolic acidosis is a risk factor for faster kidney function decline in chronic kidney disease (CKD) and in adult kidney transplant recipients (KTRs). We hypothesized that metabolic acidosis would be highly prevalent and associated with worse allograft function in pediatric KTRs. METHODS Pediatric KTRs at Montefiore Medical Center from 2010 to 2018 were included. Metabolic acidosis was defined as serum bicarbonate < 22 mEq/L or receiving alkali therapy. Regression models were adjusted for demographic factors and donor/recipient characteristics. RESULTS Sixty-three patients were identified with a median age at transplant of 10.5 (interquartile range (IQR) 4.4-15.2) years and post-transplant follow-up of 3 (IQR 1-5) years. Baseline serum bicarbonate was 21.7 ± 2.4 mEq/L, serum bicarbonate < 22 mEq/L was present in 28 (44%), and 44% of all patients were receiving alkali therapy. The prevalence of acidosis ranged from 58 to 70% during the first year of follow-up. At baseline, each 1-year higher age at transplant and every 10 ml/min/1.73 m2 higher eGFR were associated with 0.16 mEq/L (95% CI: 0.03-0.3) and 0.24 mEq/L (95% CI: 0.01-0.5) higher serum bicarbonate, respectively. Older age at transplant was associated with lower odds of acidosis (OR: 0.84; 95% CI: 0.72-0.97). During follow-up, metabolic acidosis was independently associated with 8.2 ml/min/1.73 m2 (95% CI 4.4-12) lower eGFR compared to not having acidosis; furthermore, eGFR was significantly lower among KTRs with unresolved acidosis compared with resolved acidosis. CONCLUSIONS Among pediatric KTRs, metabolic acidosis was highly prevalent in the first year post-transplantation and was associated with lower eGFR during follow-up. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Stella Kilduff
- The Children's Hospital at Montefiore/Einstein, Bronx, NY, USA.
- Albert Einstein College of Medicine, Bronx, NY, USA.
| | - Nicole Hayde
- The Children's Hospital at Montefiore/Einstein, Bronx, NY, USA
| | | | - Kimberly Reidy
- The Children's Hospital at Montefiore/Einstein, Bronx, NY, USA
| | - Matthew K Abramowitz
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY, USA
- Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Fleischer Institute for Diabetes and Metabolism, Albert Einstein College of Medicine, Bronx, NY, USA
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Wang S, Chen Y, Ge S, Liu Z, Meng J. Adsorption characterization of tetracycline antibiotics on alkali-functionalized rice husk biochar and its evaluation on phytotoxicity to seed germination. Environ Sci Pollut Res Int 2023; 30:122420-122436. [PMID: 37973778 DOI: 10.1007/s11356-023-30900-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/01/2023] [Indexed: 11/19/2023]
Abstract
This work presented adsorption characteristics of tetracycline antibiotics (TCs) on KOH-functionalized rice husk biochar pyrolyzed at 700 °C (KBC700) and evaluation on phytotoxicity of TCs-adsorbed aqueous phase to seed germination. Specifically, KBC700 gained eightfold rise in specific surface area by KOH activation. Predominant monolayer chemisorption helped KBC700 control TCs, and spontaneous and exothermic features were identified by thermodynamic studies. KBC700 could efficiently work in a wide pH range (4.5 ~ 9.5), as well as in simulated eutrophic water and co-existing cationic solution. Humic acid exerted negative impact on TCs disposal. Outstanding regeneration capability and stability were also found during adsorption-desorption cycles. Mechanism discussion implied predominant pore filling and π-π interaction accompanied by hydrogen bonding and electrostatic interaction involved in TCs-removal process. Importantly, less phytotoxicity to seed germination was found in TCs-adsorbed aqueous phase. Collectively, these findings contribute to adsorption properties recognition and subsequent application for KOH-modified rice rusk biochar in environmental TCs remediation.
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Affiliation(s)
- Siyu Wang
- National Biochar Institute of Shenyang Agricultural University, Key Laboratory of Biochar and Soil Improvement, Ministry of Agriculture and Rural Affairs, 120 # Dongling Road, Shenyang, 110866, China
| | - Yixuan Chen
- National Biochar Institute of Shenyang Agricultural University, Key Laboratory of Biochar and Soil Improvement, Ministry of Agriculture and Rural Affairs, 120 # Dongling Road, Shenyang, 110866, China
| | - Shaohua Ge
- National Biochar Institute of Shenyang Agricultural University, Key Laboratory of Biochar and Soil Improvement, Ministry of Agriculture and Rural Affairs, 120 # Dongling Road, Shenyang, 110866, China
| | - Zunqi Liu
- National Biochar Institute of Shenyang Agricultural University, Key Laboratory of Biochar and Soil Improvement, Ministry of Agriculture and Rural Affairs, 120 # Dongling Road, Shenyang, 110866, China
| | - Jun Meng
- National Biochar Institute of Shenyang Agricultural University, Key Laboratory of Biochar and Soil Improvement, Ministry of Agriculture and Rural Affairs, 120 # Dongling Road, Shenyang, 110866, China.
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88
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Fan X, Shi S, Lin H, Xia Y, He X, Zhou J. The performance and microbial response of zero valent iron alleviating the thermal-alkaline stress and enhancing hydrolysis-acidification of primary sludge. J Environ Manage 2023; 347:119134. [PMID: 37793294 DOI: 10.1016/j.jenvman.2023.119134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/14/2023] [Accepted: 08/30/2023] [Indexed: 10/06/2023]
Abstract
The biological thermal-alkaline hydrolysis-acidification (BTAHA) could promote sludge disintegration, which was conducive to producing volatile fatty acids (VFAs). However, high temperature and strong alkali could reduce the BTAHA effluent quality. Because high temperature denatures proteins and significantly changes the material and energy metabolism of bacteria, while strong alkali inhibits fermentation microorganisms (especially acid-producing microorganisms). This study investigated the internal mechanism of zero valent iron (ZVI) and magnetite (Mag.) alleviating temperature and alkali stress and improving the quality of hydrolysis-acidification effluent. At pH 7-10, compared with the control and magnetite, ZVI increased the average effluent VFAs by 24.0%-40.1% and 11.6%-18.1%, respectively. At pH 9, ZVI could provide an ecological niche for acidifying bacteria that preferred neutral and weakly alkaline conditions, with a 49.8% proportion of VFAs to soluble chemical oxygen demand (SCOD). At pH 12, the fluorescence intensity ratio of easy to difficult biodegradable organic matter in control, RMag., and RZVI were 0.63, 0.62, and 1.31, respectively. It indicated ZVI effectively alleviated high temperature and strong alkali stress. This study provides a reference for improving the quality of BTAHA effluent.
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Affiliation(s)
- Xing Fan
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Shuohui Shi
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Hong Lin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Yongqiu Xia
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Xuejie He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Jian Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, PR China.
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89
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Zheng K, Benedetti MF, van Hullebusch ED. Recovery technologies for indium, gallium, and germanium from end-of-life products (electronic waste) - A review. J Environ Manage 2023; 347:119043. [PMID: 37776794 DOI: 10.1016/j.jenvman.2023.119043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/16/2023] [Accepted: 09/17/2023] [Indexed: 10/02/2023]
Abstract
Advanced high-tech applications for communication, renewable energy, and display, heavily rely on technology critical elements (TCEs) such as indium, gallium, and germanium. Ensuring their sustainable supply is a pressing concern due to their high economic value and supply risks in the European Union. Recovering these elements from end-of-life (EoL) products (electronic waste: e-waste) offers a potential solution to address TCEs shortages. The review highlights recent advances in pre-treatment and hydrometallurgical and biohydrometallurgical methods for indium, gallium, and germanium recovery from EoL products, including spent liquid crystal displays (LCDs), light emitting diodes (LEDs), photovoltaics (PVs), and optical fibers (OFs). Leaching methods, including strong mineral and organic acids, and bioleaching, achieve over 95% indium recovery from spent LCDs. Recovery methods emphasize solvent extraction, chemical precipitation, and cementation. However, challenges persist in separating indium from other non-target elements like Al, Fe, Zn, and Sn. Promising purification involves solid-phase extraction, electrochemical separation, and supercritical fluid extraction. Gallium recovery from spent GaN and GaAs LEDs achieves 99% yield via leaching with HCl after annealing and HNO3, respectively. Sustainable gallium purification techniques include solvent extraction, ionic liquid extraction, and nanofiltration. Indium and gallium recovery from spent CIGS PVs achieves over 90% extraction yields via H2SO4 with citric acid-H2O2 and alkali. Although bioleaching is slower than chemical leaching (several days versus several hours), indirect bioleaching shows potential, achieving 70% gallium extraction yield. Solvent extraction and electrolysis exhibit promise for pure gallium recovery. HF or alkali roasting leaches germanium with a high yield of 98% from spent OFs. Solvent extraction achieves over 90% germanium recovery with minimal silicon co-extraction. Solid-phase extraction offers selective germanium recovery. Advancements in optimizing and implementing these e-waste recovery protocols will enhance the circularity of these TCEs.
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Affiliation(s)
- Kun Zheng
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, F-75005, Paris, France
| | - Marc F Benedetti
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, F-75005, Paris, France
| | - Eric D van Hullebusch
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, F-75005, Paris, France.
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90
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Kates MM, Dugan C, Rowsey T, Luckett JP, Chaulk AL. Ocular self-injection of alkaline drain cleaner in a patient with psychosis. J Fr Ophtalmol 2023; 46:e378-e380. [PMID: 37599122 DOI: 10.1016/j.jfo.2023.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 05/19/2023] [Indexed: 08/22/2023]
Affiliation(s)
- M M Kates
- Department of Ophthalmology and Visual Sciences, University of Alabama-Birmingham, 1720, University Boulevard, Birmingham, AL, 35233 Alabama, United States.
| | - C Dugan
- Department of Ophthalmology and Visual Sciences, University of Alabama-Birmingham, 1720, University Boulevard, Birmingham, AL, 35233 Alabama, United States
| | - T Rowsey
- Department of Ophthalmology and Visual Sciences, University of Alabama-Birmingham, 1720, University Boulevard, Birmingham, AL, 35233 Alabama, United States
| | - J P Luckett
- Department of Ophthalmology and Visual Sciences, University of Alabama-Birmingham, 1720, University Boulevard, Birmingham, AL, 35233 Alabama, United States; Alabama Ophthalmology Associates, Birmingham, Alabama, United States
| | - A L Chaulk
- Department of Ophthalmology and Visual Sciences, University of Alabama-Birmingham, 1720, University Boulevard, Birmingham, AL, 35233 Alabama, United States; Retina Consultants of Alabama, Birmingham, Alabama, United States
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91
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Abdelkader H, Fatease AA, Fathalla Z. Preformulation-Assisted Design of Ketorolac Tromethamine for Effective Ophthalmic Delivery. J Ocul Pharmacol Ther 2023; 39:725-734. [PMID: 37676986 DOI: 10.1089/jop.2023.0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023] Open
Abstract
Background: The eye is a highly protected organ from ocularly administered drugs; drug- and formulation-related factors contribute significantly to ocular bioavailability. There has been a growing interest in using nonsteroidal anti-inflammatory drugs in ophthalmology for treating postoperative pain, inflammation, and seasonal allergic conjunctivitis. A preformulation-assisted design boosts efficacy and reduces dose requirements. Methods: This work aims to study the preformulation characteristics of ketorolac tromethamine to improve ocular performance and future formulation development through developing an high-performance liquid chromatography (HPLC) stability-indicating assay, forced degradation under stress conditions, solubility, as well as partition and distribution coefficient measurements. An isocratic HPLC with diode array detector method was developed and validated. Accelerated degradation under different stressors (acid, alkali, heat, and oxidative) was studied. In addition, solubility, partition, and distribution were investigated at different pHs of 3.5-7.4. Results: The results indicated that the developed HPLC method was simple, rapid (retention time ≃3 min), sensitive, selective, robust, and stability indicating. The drug seems more chemically sensitive to acid degradation (∼30% and 40% of the drug was degraded under 0.1 M and 1 M HCl at 60°C for 24 h, respectively). Another significant degradation was recorded in the following order: Oxidative > alkali > heat (phosphate-buffered saline) > heat (distilled water). Being a weak ionizable drug, both water and lipid solubility, as measured through partition coefficients, it demonstrated pH-dependency. Conclusion: For the optimum balance of water and lipid solubility required for penetration through the lipophilic corneal epithelial barrier, ketorolac eye drops would be better formulated between pH 5.5 and 6.6 than being formulated at the physiological fluid pH 7.4, where the drug is extremely hydrophilic and less permeable.
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Affiliation(s)
- Hamdy Abdelkader
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha, the Kingdom of Saudi Arabia
| | - Adel Al Fatease
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha, the Kingdom of Saudi Arabia
| | - Zeinab Fathalla
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, Egypt
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92
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Navrátil T, Rohovec J, Shanley J, Matoušková Š, Nováková T, Šmejkalová AH, Prokeš R. Atmospheric mercury and its deposition during the phasing out of an amalgam electrolysis plant: temporal, seasonal, and spatial patterns. Environ Sci Pollut Res Int 2023; 30:123586-123602. [PMID: 37989951 DOI: 10.1007/s11356-023-30784-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 10/27/2023] [Indexed: 11/23/2023]
Abstract
Large amounts of mercury (Hg) were consumed and emitted into the atmosphere during the process of amalgam electrolysis used to produce chlorine and caustic soda since the nineteenth century. In Europe, amalgam electrolysis has been gradually replaced by advanced Hg-free technologies. In this work, we describe changes in atmospheric Hg and bulk Hg wet deposition during the phasing out of an amalgam electrolytic production line of a chlor-alkali plant in Neratovice, Czech Republic, central Europe. Bulk wet deposition Hg near the chlor-alkali plant was low at 3.6 ± 0.8 μg m-2 year-1 due in part to low annual precipitation amounts (486 ± 97 mm) in the period 2015-2021. Nevertheless, Hg deposition was elevated relative to a nearby reference site both before and after decommissioning of the electrolytic line. Switching off the amalgam electrolytic line did not notably affect bulk wet deposition Hg near the chlor-alkali plant. Levels of gaseous elemental Hg (GEM) and particle-bound Hg (PBM) monitored seasonally four times per year over 24-h time periods indicated rapid declines in four nearby settlements set in cardinal directions from the Hg emission source. Mean atmospheric GEM and PBM concentrations decreased rapidly from 9.0 ± 2.1 ng m-3 and 243 ± 255 pg m-3 in the period 2013-2017 when amalgam electrolysis was operating to 3.3 ± 0.4 ng m-3 and 32 ± 6 pg m-3 in the period 2018-2021 after its decommissioning in November 2017. Seasonal changes of GEM coincided with changes in temperature with the highest concentrations in summer, while PBM air levels were lowest in summer due to the highest seasonal precipitation amount. GEM concentrations at the four monitored settlements at Neratovice remained elevated at 2.8 ng m-3 with respect to regional background, but PBM levels decreased to background levels.
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Affiliation(s)
- Tomáš Navrátil
- Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00, Prague 6, Czech Republic.
| | - Jan Rohovec
- Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00, Prague 6, Czech Republic
| | - James Shanley
- U.S. Geological Survey, PO Box 628, Montpelier, VT, 05601, USA
| | - Šárka Matoušková
- Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00, Prague 6, Czech Republic
| | - Tereza Nováková
- Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00, Prague 6, Czech Republic
| | | | - Roman Prokeš
- Global Change Research Institute of the Czech Academy of Sciences, Bělidla 986/4a, 603 00, Brno, Czech Republic
- RECETOX, Faculty of Sciences, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic
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93
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Show BK, Shivakumaran G, Koley A, Ghosh A, Chaudhury S, Hazra AK, Balachandran S. Effect of thermal and NaOH pretreatment on water hyacinth to enhance the biogas production. Environ Sci Pollut Res Int 2023; 30:120984-120993. [PMID: 37947930 DOI: 10.1007/s11356-023-30810-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 10/28/2023] [Indexed: 11/12/2023]
Abstract
Water hyacinth (WH) is used as the substrate for biogas production due to its high lignocellulosic composition and natural abundance. The present study used thermal and chemical (alkali) pretreatment techniques to enhance biogas production from water hyacinth used as a substrate by anaerobic digestion. Thermal pretreatment was done using an autoclave at 121 °C and 15 lb (2 bar) pressure and alkali pretreatment by NaOH at two concentrations (2% and 5% w/v). The inoculum:substrate ratio for biogas production was 2:1, where cow dung was used as inoculum. Results indicated that the pretreatments increased biomass degradability and improved biogas production. Water hyacinth pretreated with 5% NaOH produced the highest amount of biogas (142.61 L/Kg VS) with a maximum methane content of 64.59%. The present study found that alkali pretreatment can modify the chemical structure and enhance WH hydrolysis, leading to enhanced energy production.
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Affiliation(s)
- Binoy Kumar Show
- Bioenergy Laboratory, Department of Environmental Studies, Siksha-Bhavana, Visva-Bharati (A Central University), Santiniketan, West Bengal, 731235, India
| | - Gaayathri Shivakumaran
- Department of Microbiology, PSG College of Arts and Sciences, Coimbatore, Tamil Nadu 641 014, India
| | - Apurba Koley
- Bioenergy Laboratory, Department of Environmental Studies, Siksha-Bhavana, Visva-Bharati (A Central University), Santiniketan, West Bengal, 731235, India
| | - Anudeb Ghosh
- Bioenergy Laboratory, Department of Environmental Studies, Siksha-Bhavana, Visva-Bharati (A Central University), Santiniketan, West Bengal, 731235, India
| | - Shibani Chaudhury
- Bioenergy Laboratory, Department of Environmental Studies, Siksha-Bhavana, Visva-Bharati (A Central University), Santiniketan, West Bengal, 731235, India.
| | - Amit Kumar Hazra
- Department of Lifelong Learning and Extension, Palli-Samgathana Vibhaga, Visva-Bharati (A Central University), Sriniketan, West Bengal, 731236, India
| | - S Balachandran
- Bioenergy Laboratory, Department of Environmental Studies, Siksha-Bhavana, Visva-Bharati (A Central University), Santiniketan, West Bengal, 731235, India
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94
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Guo X, Peng W, Xu X, Xie K, Yang X. The Potential of Endophytes in Improving Salt-Alkali Tolerance and Salinity Resistance in Plants. Int J Mol Sci 2023; 24:16917. [PMID: 38069239 PMCID: PMC10706814 DOI: 10.3390/ijms242316917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/17/2023] [Accepted: 11/01/2023] [Indexed: 12/18/2023] Open
Abstract
Ensuring food security for the global population is a ceaseless and critical issue. However, high-salinity and high-alkalinity levels can harm agricultural yields throughout large areas, even in largely agricultural countries, such as China. Various physical and chemical treatments have been employed in different locations to mitigate high salinity and alkalinity but their effects have been minimal. Numerous researchers have recently focused on developing effective and environmentally friendly biological treatments. Endophytes, which are naturally occurring and abundant in plants, retain many of the same characteristics of plants owing to their simultaneous evolution. Therefore, extraction of endophytes from salt-tolerant plants for managing plant growth in saline-alkali soils has become an important research topic. This extraction indicates that the soil environment can be fundamentally improved, and the signaling pathways of plants can be altered to increase their defense capacity, and can even be inherited to ensure lasting efficacy. This study discusses the direct and indirect means by which plant endophytes mitigate the effects of plant salinity stress that have been observed in recent years.
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Affiliation(s)
- Xueying Guo
- College of Pharmacy, Chengdu University, Chengdu 610106, China; (X.G.); (W.P.); (X.X.); (K.X.)
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Wanrong Peng
- College of Pharmacy, Chengdu University, Chengdu 610106, China; (X.G.); (W.P.); (X.X.); (K.X.)
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Xinyi Xu
- College of Pharmacy, Chengdu University, Chengdu 610106, China; (X.G.); (W.P.); (X.X.); (K.X.)
| | - Kangwei Xie
- College of Pharmacy, Chengdu University, Chengdu 610106, China; (X.G.); (W.P.); (X.X.); (K.X.)
| | - Xingyong Yang
- College of Pharmacy, Chengdu University, Chengdu 610106, China; (X.G.); (W.P.); (X.X.); (K.X.)
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Chengdu University, Chengdu 610106, China
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95
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Naz N, Asghar A, Basharat S, Fatima S, Hameed M, Ahmad MSA, Ahmad F, Shah SMR, Ashraf M. Phytoremediation through microstructural and functional alterations in alkali weed ( Cressa cretica L.) in the hyperarid saline desert. Int J Phytoremediation 2023; 26:913-927. [PMID: 37985450 DOI: 10.1080/15226514.2023.2282044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Salt excretory halophytes are the major sources of phytoremediation of salt-affected soils. Cressa cretica is a widely distributed halophyte in hypersaline lands in the Cholistan Desert. Therefore, identification of key physio-anatomical traits related to phytoremediation in differently adapted C. cretica populations was focused on. Four naturally adapted ecotypes of non-succulent halophyte Cressa cretica L. form hyper-arid and saline desert Cholistan. The selected ecotypes were: Derawar Fort (DWF, ECe 20.8 dS m-1) from least saline site, Traway Wala Toba (TWT, ECe 33.2 dS m-1) and Bailah Wala Dahar (BWD, ECe 45.4 dS m-1) ecotypes were from moderately saline sites, and Pati Sir (PAS, ECe 52.4 dS m-1) was collected from the highly saline site. The natural population of this species was collected and carefully brought to the laboratory for different structural and functional traits. As a result of high salinity, Na+, Cl-, K+, and Ca2+ content significantly increased at root and shoot level. At root level, some distinctive modifications such as increased sclerification in vascular bundles, enlarged vascular bundles, metaxylem vessels, phloem region, and storage parenchyma (cortex) are pivotal for water storage under extreme arid and osmotic condition. At the stem level, enhanced sclerification in outer cortex and vascular bundles, stem cellular area, cortical proportion, metaxylem and phloem area, and at the leaf level, very prominent structural adaptations were thicker and smaller leaves with increased density of salt glands and trichomes at surface, few and large stomata, reduced cortical and mesophyll parenchyma, and narrow xylem vessels and phloem area represent their non-succulent nature. The ecotype collected from hypersaline environments was better adapted regarding growth traits, ion uptake and excretion, succulence, and phytoremediation traits. More importantly, structural and functional traits such as root length and biomass, accumulation of toxic ions along with K+ in root and shoot, accumulation of Ca2+ in shoot and Mg2+ in root, excretion of toxic ions were the highest in this ecotype. In conclusion, all these alterations strongly favor water conservation, which certainly contributes to ecotypes survival under salt-induced physiological drought.
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Affiliation(s)
- Nargis Naz
- Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Ansa Asghar
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Sana Basharat
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Sana Fatima
- Department of Botany, The Government Sadiq College University, Bahawalpur, Pakistan
| | - Mansoor Hameed
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | | | - Farooq Ahmad
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Syed Mohsan Raza Shah
- Department of Botany, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Muhammad Ashraf
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
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96
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Jiang T, He Y, Wu Z, Cui Y, Wang X, Huang H, Fan Y, Han M, Wang J, Wang S, Chen X, Lu X, Wang D, Guo L, Zhao L, Hao F, Ye W. Enhancing stimulation of cyaniding, GhLDOX3 activates reactive oxygen species to regulate tolerance of alkalinity negatively in cotton. Ecotoxicol Environ Saf 2023; 267:115655. [PMID: 37924802 DOI: 10.1016/j.ecoenv.2023.115655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/22/2023] [Accepted: 10/30/2023] [Indexed: 11/06/2023]
Abstract
Anthocyanins belong to flavonoid secondary metabolites that act as plant pigments to give flowers and fruits different colors and as "scavengers" of reactive oxygen species (ROS) to protect plants from abiotic and biotic stresses. Few studies linked anthocyanins to alkaline resistance so far. In this study, anthocyanin synthesis-related gene leucoanthocyanidin dioxygenase (LDOX) was screened as a candidate gene to explore its relationship with alkali stress. The results found that pYL156: GhLDOX3 lines treated with 50 mM Na2CO3 (pH 11.11) for 24 h showed a significant increase in peroxidase (POD) activity, a decrease in total anthocyanin content and an increase in cyanidin content and a decrease in ROS accumulation compared to pYL156. The overexpressed (OE) lines, ldox mutant and wild-type (WT) lines in Arabidopsis were treated with 50 mM Na2CO3, 100 mM Na2CO3 and 150 mM Na2CO3 for 8 d, respectively. The wilted degree of the OE lines was more severe than WT lines, and less severe in the mutant lines in the 150 mM Na2CO3 treatment. After treatment, the expression levels of AtCAT and AtGSH genes related to antioxidant system in OE lines were significantly lower than in WT, and the expression levels of AtCAT and AtGSH in mutant lines were significantly higher than in WT. In conclusion, the above results suggest GhLDOX3 played a negative regulatory role in the mechanism of resisting Na2CO3 stress. Therefore, it can be considered in cotton breeding to improve the alkali tolerance of cotton by regulating the expression of related genes.
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Affiliation(s)
- Tiantian Jiang
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization / School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
| | - Yunxin He
- Hunan Institute of Cotton Science, Changde 415101, Hunan, China
| | - Zhe Wu
- Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan 063299, Hebei, China
| | - Yupeng Cui
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Xiuping Wang
- Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan 063299, Hebei, China
| | - Hui Huang
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Yapeng Fan
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Mingge Han
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Junjuan Wang
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Shuai Wang
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Xiugui Chen
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Xuke Lu
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Delong Wang
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Lixue Guo
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Lanjie Zhao
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China
| | - Fushun Hao
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization / School of Life Sciences, Henan University, Kaifeng 475004, Henan, China.
| | - Wuwei Ye
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences / Research Base, Anyang Institute of Technology, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Anyang 455000, Henan, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization / School of Life Sciences, Henan University, Kaifeng 475004, Henan, China.
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97
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Yi S, Zuo W, Xu L, Wang Y, Gu C, Shan Y, Bai Y. Accumulation and migration of microplastics and its influencing factors in coastal saline-alkali soils amended with sewage sludge. Ecotoxicol Environ Saf 2023; 266:115597. [PMID: 37866037 DOI: 10.1016/j.ecoenv.2023.115597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 09/17/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023]
Abstract
Coastal saline-alkali soil can be transformed to agricultural soil with sewage sludge amendment. However, sewage sludge contains a large number of microplastics (MPs), and the fate of MPs in sludge-treated saline-alkali soil needs to be studied. Therefore, we investigated the accumulation and migration of MPs, and their influencing factors in saline-alkali soil after one-time sewage sludge application (0, 25, 50, 100 and 200 t ha-1 SSA). The results indicated that sewage sludge input contributed to MP accumulation in soil, and the MP abundance in 20-40 cm soil was significantly lower than that in 0-20 cm soil. Fragments and fibers were the most abundant MPs in soil, and the proportions of fragments and 50-200 µm MPs in 20-40 cm soil were lower than those in 0-20 cm soil, while the < 50 µm MP proportion was higher than that in 0-20 cm soil. Correlation analysis showed that MP accumulation rate (0-40 cm) and migration rate (20-40 cm) were negatively correlated with soil organic matter (SOM) content and SSA, but positively correlated with soil pH. Stepwise regression analysis further showed that SOM and SSA were the main factors affecting MP accumulation rate, which explained 47.7% and 46% of its variation, respectively, while pH was the crucial factor affecting the migration rate of MPs, followed by EC and SSA. In conclusion, SSA caused MP accumulation in saline-alkali soil, and SSA primarily affected the MP abundance, while soil OM, pH and EC directly affected MP migration in soil.
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Affiliation(s)
- Siqiang Yi
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, PR China
| | - Wengang Zuo
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, PR China
| | - Lu Xu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, PR China
| | - Yimin Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, PR China
| | - Chuanhui Gu
- Environmental Research Center, Duke Kunshan University, Kunshan 215316, PR China
| | - Yuhua Shan
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, PR China; Key Laboratory of Arable Land Quality Monitoring and Evaluation, Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225127, PR China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, PR China
| | - Yanchao Bai
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, PR China; Key Laboratory of Arable Land Quality Monitoring and Evaluation, Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225127, PR China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, PR China.
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98
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Ahmed B, Gahlot P, Balasundaram G, Tyagi VK, Banu J R, Vivekanand V, Kazmi AA. Semi-continuous anaerobic co-digestion of thermal and thermal-alkali processed organic fraction of municipal solid waste: Methane yield, energy analysis, anaerobic microbiome. J Environ Manage 2023; 345:118907. [PMID: 37666133 DOI: 10.1016/j.jenvman.2023.118907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 08/09/2023] [Accepted: 08/27/2023] [Indexed: 09/06/2023]
Abstract
The semi-continuous anaerobic co-digestion (AcoD) of thermal and thermal-alkali pretreated organic fraction of municipal solid waste (OFMSW) and sewage sludge (SS) was studied under varying hydraulic retention times (HRT) and organic loading rates (OLR Three semi-continuous digesters were operated under control (non-pre-treated), thermally pretreated (125 °C), and thermal-alkali pretreated (125°C-3g/L NaOH) conditions at variable OLRs at 2.5, 4.0, 5.1, and 7.6 kgVS/m3.d and corresponding HRTs of 30, 20, 15, and 10 days. The 10 and 43% higher methane yield (0.445 m3/kgVS) and 11 and 57% higher VS removal (52%) was achieved for thermal-alkali pretreated digester at 5.1 kgVS/m3.d OLR over thermally pretreated (0.408 m3/kgVS, 45% VS removal) and control digesters (0.310 m3/kgVS, 33% VS removal), respectively. Thermal and thermal-alkali digesters failed on increasing the OLR to 7.6 kgVS/m3.d, whereas the control digester becomes upset at 5.1 kgVS/m3.d OLR. The metagenomic study revealed that Firmicutes, Bacteroidetes, Chloroflexi, Euryarchaeota, Proteobacteria, and Actinobacteria were the predominant bacterial population, whereas Methanosarcina and Methanothrix dominated the archaeal community. Energy balance analysis revealed that thermal alkali pretreatment showed the highest positive energy balance of 114.6 MJ/ton with an energy ratio of 1.25 compared with thermally pretreated (81.5 MJ/ton) and control samples (-46.9 MJ/ton). This work pave the way for scaleup of both thermal and thermal-alkali pre-treatment at 125 °C to realize the techno-economic and energy potential of the process.
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Affiliation(s)
- Banafsha Ahmed
- Department of Civil Engineering, Indian Institute of Technology, Roorkee, Roorkee, 247667, India
| | - Pallavi Gahlot
- Department of Civil Engineering, Indian Institute of Technology, Roorkee, Roorkee, 247667, India
| | - Gowtham Balasundaram
- Department of Civil Engineering, Indian Institute of Technology, Roorkee, Roorkee, 247667, India
| | - Vinay Kumar Tyagi
- Environmental Hydrology Division, National Institute of Hydrology, Roorkee, Roorkee, 247667, India.
| | - Rajesh Banu J
- Department of Biotechnology, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu, 610005, India
| | - Vivekanand Vivekanand
- Centre for Energy and Environment, Malaviya National Institute of Technology Jaipur, Jaipur, 302017, Rajasthan, India
| | - A A Kazmi
- Department of Civil Engineering, Indian Institute of Technology, Roorkee, Roorkee, 247667, India
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99
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Zhang S, Rasool G, Wang S, Zhang Y, Guo X, Wei Z, Zhang X, Yang X, Wang T. Biochar and Chlorella increase rice yield by improving saline-alkali soil physicochemical properties and regulating bacteria under aquaculture wastewater irrigation. Chemosphere 2023; 340:139850. [PMID: 37604341 DOI: 10.1016/j.chemosphere.2023.139850] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/13/2023] [Accepted: 08/15/2023] [Indexed: 08/23/2023]
Abstract
The combined effects of biochar and Chlorella under aquaculture wastewater irrigation in improving saline-alkali soil physicochemical properties, microbial communities, and rice yield, is not yet clear. This study utilized soil physicochemical indicators and gene sequencing to examine the effect of salinity stress, biochar and Chlorella under aquaculture wastewater irrigation on soil properties, bacterial community compositions, and rice production. Treatments included three factors in a randomized complete block design with three replications: (i) Biochar - 40 tons ha -1 (BW) versus no-biochar (BN); (ii) Salinity - 3‰ salinity (SH) versus 1‰ salinity (SL); and (iii) Chlorella - with 107 cells mL -1 Chlorella (CW) versus no-Chlorella (CN). The results revealed that increased salinity adversely affected the soil nutrients (TOC, NO3⁻-N, NH4+-N, Olsen-P), and enzyme activity (urease, sucrase, catalase), resulting in a 9.67% reduction in rice yield compared to SL treatment. However, the close correlation between alterations in soil bacterial communities, functions, and soil physicochemical properties, as well as rice yield, indicated that biochar and Chlorella promoted rice yield by enhancing the physicochemical properties of saline-alkali soil and bacterial community when irrigated with aquaculture wastewater: (1) addition of biochar increased the146.05% rice yield by increasing TOC content, the complexity of bacterial co-occurrence patterns, nitrogen fixation potential, and nitrification potential, (2) addition of Chlorella increased TOC, NO3⁻-N, NH4+-N, enhanced urease, sucrase, catalase activity, and nitrification potential to increased rice yield by 60.29%, and (3) compared with the treatment T3 (SHBNCN), the treatments with biochar (BW) and Chlorella (CW) increased the yield by 561.30% and 445.03% under 1‰ and 3‰ salinity, respectively. These findings provide novel perspectives on the capacity of biochar and Chlorella to improve saline-alkali soil properties and increase rice yield irrigated with aquaculture wastewater.
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Affiliation(s)
- Shuxuan Zhang
- College of Agricultural Science and Engineering, Hohai University, No.8 Focheng West Road, Nanjing, Jiangsu, 211100, China
| | - Ghulam Rasool
- College of Agricultural Science and Engineering, Hohai University, No.8 Focheng West Road, Nanjing, Jiangsu, 211100, China; College of Hydrology and Water Resources, Hohai University, Nanjing, 210024, China
| | - Shou Wang
- College of Agricultural Science and Engineering, Hohai University, No.8 Focheng West Road, Nanjing, Jiangsu, 211100, China
| | - Yiwen Zhang
- College of Agricultural Science and Engineering, Hohai University, No.8 Focheng West Road, Nanjing, Jiangsu, 211100, China
| | - Xiangping Guo
- College of Agricultural Science and Engineering, Hohai University, No.8 Focheng West Road, Nanjing, Jiangsu, 211100, China.
| | - Zhejun Wei
- Plant Nutrition and Fertilization Department, Guangxi South Subtropical Agricultural Science Research Institute, Chongzuo, 532415, China
| | - Xiaoyan Zhang
- College of Agricultural Science and Engineering, Hohai University, No.8 Focheng West Road, Nanjing, Jiangsu, 211100, China
| | - Xing Yang
- Institute of Rural Water Conservancy and Soil and Water Conservation, Jiangsu Hydraulic Research Institute, 210017, China
| | - Tongshun Wang
- Institute of Rural Water Conservancy and Soil and Water Conservation, Jiangsu Hydraulic Research Institute, 210017, China
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100
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Xiang J, Sun X, Wang C, Zhaxiyangzong, Shi WZ, Wang GM, Zhang HC. Effects of biochar application on nitrogen transformation and N 2O emission in a coastal saline-alkali soil. Ying Yong Sheng Tai Xue Bao 2023; 34:2969-2977. [PMID: 37997407 DOI: 10.13287/j.1001-9332.202311.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
The application of biochar can improve soil fertility and benefit sustainable agricultural development and carbon neutrality simultaneously. To better understand the effects of biochar addition on nitrogen transformation and N2O emission in a coastal saline-alkali soil and its potential mechanisms, we conducted a 60-day laboratory incubation experiment with six treatments, i.e., ammonium sulfate (N 150 mg·kg-1), ammonium sulfate + 0.4% (weight/weight) biochar, ammonium sulfate + 0.6% biochar, ammonium sulfate + 0.8% biochar, ammonium sulfate + 1.6% biochar, and ammonium sulfate + 0.2% biochar and 0.2% organic fertilizer (based on equivalent N basis). The results showed that soil nitrogen transformation was mainly affected by biochar addition at the early stage of incubation. Biochar addition significantly increased the contents of nitrate and ammonium. Biochar addition significantly increased soil net nitrification rate, but the magnitude of such increases decreased with increasing biochar addition level. Similar temporal change patterns of N2O emissions were observed in all treatments, and the N2O emissions mainly occurred in the first 30 days of incubation. Compared with the CK, biochar addition significantly reduced the cumulative N2O emission, and the decrement increased with increasing biochar addition levels. In conclusion, the effects of biochar and nitrogen fertilizer addition on soil nitrogen transformation and N2O emission varied with the application rate. Biochar addition with a rate of 0.8% (W/W) increased soil inorganic nitrogen content and decreased soil N2O emission. It could provide theoretical basis and reference for the formulation of reasonable plans for the improvement and utilization of biochar in coastal saline-alkali soil.
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Affiliation(s)
- Jian Xiang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Xi Sun
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Cheng Wang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Zhaxiyangzong
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Wen-Zhu Shi
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Gen-Mei Wang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Huan-Chao Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
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