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Jin Q, Feng Y, Cabana-Puig X, Chau TN, Difulvio R, Yu D, Hu A, Li S, Luo XM, Ogejo J, Lin F, Huang H. Combined dilute alkali and milling process enhances the functionality and gut microbiota fermentability of insoluble corn fiber. Food Chem 2024; 446:138815. [PMID: 38428087 DOI: 10.1016/j.foodchem.2024.138815] [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: 09/25/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 03/03/2024]
Abstract
In this study, we developed a process combining dilute alkali (NaOH or NaHCO3) and physical (disk milling and/or ball milling) treatments to improve the functionality and fermentability of corn fiber. The results showed that combining chemical with physical processes greatly improved the functionality and fermentability of corn fiber. Corn fiber treated with NaOH followed by disk milling (NaOH-DM-CF) had the highest water retention (19.5 g/g), water swelling (38.8 mL/g), and oil holding (15.5 g/g) capacities. Moreover, NaOH-DM-CF produced the largest amount (42.9 mM) of short-chain fatty acid (SCFA) during the 24-hr in vitro fermentation using porcine fecal inoculum. In addition, in vitro fermentation of NaOH-DM-CF led to a targeted microbial shifting to Prevotella (genus level), aligning with a higher fraction of propionic acid. The outstanding functionality and fermentability of NaOH-DM-CF were attributed to its thin and loose structure, decreased ester linkages and acetyl groups, and enriched structural carbohydrate exposure.
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Affiliation(s)
- Qing Jin
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States; School of Food and Agriculture, University of Maine, Orono, ME 04469, United States
| | - Yiming Feng
- Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Xavier Cabana-Puig
- Department of Biomedical Sciences and Pathobiology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Tran N Chau
- School of Plant and Environmental Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Ronnie Difulvio
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Dajun Yu
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Anyang Hu
- Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Song Li
- School of Plant and Environmental Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Xin M Luo
- Department of Biomedical Sciences and Pathobiology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Jactone Ogejo
- Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Feng Lin
- Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States
| | - Haibo Huang
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States.
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Kaczmarska A, Pieczywek PM, Cybulska J, Cieśla J, Zdunek A. Structural and rheological properties of diluted alkali soluble pectin from apple and carrot. Food Chem 2024; 446:138869. [PMID: 38428075 DOI: 10.1016/j.foodchem.2024.138869] [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: 06/16/2023] [Revised: 02/13/2024] [Accepted: 02/25/2024] [Indexed: 03/03/2024]
Abstract
Pectin, a complex polysaccharide found in plant cell walls, plays a crucial role in various industries due to its functional properties. The diluted alkali-soluble pectin (DASP) fractions that result from the stepwise extraction of apples and carrots were studied to evaluate their structural and rheological properties. Homogalacturonan and rhamnogalacturonan I, in different proportions, were the main pectin domains that composed DASP from both materials. Atomic force microscopy revealed that the molecules of apple DASP were longer and more branched. A persistence length greater than 40 nm indicated that the pectin molecules deposited on mica behaved as stiff molecules. The weight-averaged molar mass was similar for both samples. Intrinsic viscosity values of 194.91 mL·g-1 and 186.79 mL·g-1 were obtained for apple and carrot DASP, respectively. Rheological measurements showed greater structural strength for apple-extracted pectin, whereas carrot pectin was characterized by a higher linear viscoelasticity limit. This comparison showed that the pectin fractions extracted by diluted alkali are structurally different and have different rheological properties depending on their botanical origin. The acquired insights can enhance the customized use of pectin residue and support further investigations in industries relying on pectin applications.
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Affiliation(s)
- Adrianna Kaczmarska
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland
| | - Piotr M Pieczywek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland
| | - Justyna Cybulska
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland
| | - Jolanta Cieśla
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland
| | - Artur Zdunek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland.
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3
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Wang F, Li N, Li H, Di Y, Li F, Jiang P, Wang G. An alkali-extracted neutral heteropolysaccharide from Phellinus nigricans used as an immunopotentiator in immunosuppressed mice by activating macrophages. Carbohydr Polym 2024; 335:122110. [PMID: 38616084 DOI: 10.1016/j.carbpol.2024.122110] [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: 01/11/2024] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/16/2024]
Abstract
A neutral heteropolysaccharide (PNANb) was isolated with alkali (0.1 M NaOH) from mycelia of Phellinus nigricans, and the structure, immunostimulating activity and some of the underlying molecular mechanisms of action of PNANb were explored in the current study. PNANb (14.95 kDa) predominantly consisted of Gal, Glc, and Man with minor Fuc. GC-MS and NMR analyses indicated that the backbone of PNANb was mainly composed of 6-α-Galp, 2,6-α-Galp with minor 3,6-β-Glcp, which was substituted with complex side chains at C-2 of 2,6-α-Galp and C-3 of 3,6-β-Glcp. Notably, PNANb (50 or 100 mg/kg) possessed immunoprotective effects in cyclophosphamide (Cy)-induced immunosuppressed C57BL/6 mice, which was supported by evidence including the enhancement of spleen and thymus indices, levels of serum immunoglobulins (IgG, IgM) and cytokines (IFN-γ, IL-2, IL-4, IL-10), and macrophage activity. However, the immunostimulation effects of PNANb were decreased when macrophages were depleted, underscoring the essential role of macrophages in the beneficial effects of PNANb in Cy-induced immunosuppressed mice. Further investigations in vitro indicated that PNANb activated macrophages through MAPK/NF-κB signaling pathways mediated by Toll-like receptor 4. Therefore, PNANb can serve as a prospective immunopotentiator in immunosuppression.
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Affiliation(s)
- Feihe Wang
- School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Na Li
- School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Hong Li
- School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Yao Di
- School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Fan Li
- School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Peng Jiang
- School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Guiyun Wang
- School of Life Sciences, Northeast Normal University, Changchun 130024, China.
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4
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Wang Z, Li N, Xu Y, Wang W, Liu Y. Functional activity of endophytic bacteria G9H01 with high salt tolerance and anti-Magnaporthe oryzae that isolated from saline-alkali-tolerant rice. Sci Total Environ 2024; 926:171822. [PMID: 38521266 DOI: 10.1016/j.scitotenv.2024.171822] [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: 01/05/2024] [Revised: 02/24/2024] [Accepted: 03/17/2024] [Indexed: 03/25/2024]
Abstract
It holds significant practical importance to screen and investigate endophytic bacteria with salt-tolerant activity in rice for the development of relevant microbial agents. A total of 179 strains of endophytic bacteria were isolated from 24 samples of salt-tolerant rice seeds, with almost 95 % of these bacteria exhibiting tolerance to a salt content of 2 % (0.34 mol/L). Following the screening process, a bacterium named G9H01 was identified, which demonstrated a salt tolerance of up to 15 % (2.57 mol/L) and resistance to Magnaporthe oryzae, the causal agent of rice blast disease. Phylogenetic analysis confirmed G9H01 as a strain of Bacillus paralicheniformis. The complete genome of G9H01 was sequenced and assembled, revealing a considerable number of genes encoding proteins associated with salt tolerance. Further analysis indicated that G9H01 may alleviate salt stress in a high-salt environment through various mechanisms. These mechanisms include the utilization of proteins such as K+ transporters, antiporters, and Na+/H+ antiporters, which are involved in K+ absorption and Na+ excretion. G9H01 also demonstrated the ability to uptake and accumulate betaine, as well as secrete extracellular polysaccharides. Collectively, these findings suggest that Bacillus paralicheniformis G9H01 has potential as a biocontrol agent, capable of promoting rice growth under saline-alkali-tolerant conditions.
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Affiliation(s)
- Zhishan Wang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ni Li
- State Key Laboratory of Hybrid Rice (Hunan Hybrid Rice Research Center), Changsha 410125, China
| | - Youqiang Xu
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, China.
| | - Weiping Wang
- State Key Laboratory of Hybrid Rice (Hunan Hybrid Rice Research Center), Changsha 410125, China.
| | - Yang Liu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
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Han L, Li L, Xu Y, Xu X, Ye W, Kang Y, Zhen F, Peng X. Short-term high-temperature pretreated compost increases its application value by altering key bacteria phenotypes. Waste Manag 2024; 180:135-148. [PMID: 38564914 DOI: 10.1016/j.wasman.2024.03.034] [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: 01/05/2024] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/04/2024]
Abstract
Short-term high-temperature pretreatment can effectively shorten the maturity period of organic waste composting and improve the fertilizer efficiency and humification degree of products. To investigate the effect and mechanism of the end products on the saline-alkali soil improvement and plant growth, the short-term high-temperature pretreatment composting (SHC) and traditional composting (STC) were separately blended with saline-alkali soil in a ratio of 0-40 % to establish a soil-fertilizer blended matrix for cultivating Lolium perenne L. The pot experiments combined with principal component analysis showed Lolium perenne L. planted in 20 % SHC-blended saline-alkali soil had the best growth effect, and its biomass, chlorophyll content, and plant height were 109-113 % higher than STC. The soil physicochemical property analysis showed that SHC and STC increased the soil nutrient content, humification degree, and enzyme activity at any blending ratio. The microbial analysis showed that 20 % SHC in the saline-alkali soil stimulated the growth of functional microorganisms and the addition of SHC promoted the sulfur cycle, nitrogen fixation, and carbon metabolism in the soil-plant system. The correlation analysis showed that pH; nutrient contents; and urease, catalase, sucrase, and phosphatase activities in the saline-alkali soil were significantly correlated with plant growth indexes (p < 0.05). Georgenia and norank_f__Fodinicurvataceae had a stronger correlation with four types of enzyme activities (p < 0.01). SHC improved the saline-alkali soil and promoted plant growth by adjusting soil pH, increasing soil nutrients, and influencing soil enzyme activity and dominant flora. This study provides a theoretical basis for applying SHC products in soil improvement.
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Affiliation(s)
- Linpei Han
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environments, Ministry of Education, Institute of Environment and Ecology, Chongqing University, Chongqing 400045, PR China
| | - Lei Li
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environments, Ministry of Education, Institute of Environment and Ecology, Chongqing University, Chongqing 400045, PR China.
| | - Yun Xu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environments, Ministry of Education, Institute of Environment and Ecology, Chongqing University, Chongqing 400045, PR China
| | - Xinyi Xu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environments, Ministry of Education, Institute of Environment and Ecology, Chongqing University, Chongqing 400045, PR China
| | - Wenjie Ye
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environments, Ministry of Education, Institute of Environment and Ecology, Chongqing University, Chongqing 400045, PR China
| | - Yuanji Kang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environments, Ministry of Education, Institute of Environment and Ecology, Chongqing University, Chongqing 400045, PR China
| | - Feng Zhen
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China
| | - Xuya Peng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environments, Ministry of Education, Institute of Environment and Ecology, Chongqing University, Chongqing 400045, PR China
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Cui H, Zhu H, Zhang FM, Wang XY, Hou SN, Feng WD. Soil amendments reduce CH 4 and CO 2 but increase N 2O and NH 3 emissions in saline-alkali paddy fields. Sci Total Environ 2024; 924:171673. [PMID: 38479519 DOI: 10.1016/j.scitotenv.2024.171673] [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: 12/21/2023] [Revised: 03/10/2024] [Accepted: 03/10/2024] [Indexed: 03/17/2024]
Abstract
Limited research has been conducted on ammonia (NH3) volatilization and greenhouse gases (GHGs) emissions in saline-alkali paddy fields, along with complex interaction involving various genes (16sRNA, amoA, narG, nirK, nosZ, and nifH). This study employed mesocosm-scale experiment to investigate NH3 volatilization and GHGs emissions, focusing on bacterial communities and genic abundance, in saline-alkali paddy fields with desulfurized gypsum (DG) and organic fertilizer (OF) amendments. Compared to the control (CK) treatment, DG and OF treatments reduced methane (CH4) and carbon dioxide (CO2) emissions by 78.05 % and 26.18 %, and 65.84 % and 11.62 %, respectively. However, these treatments increased NH3 volatilization by 26.26 % and 45.23 %, and nitrous oxide (N2O) emission by 41.00 % and 12.31 %. Notably, NH3 volatilization primarily stemmed from ammonia nitrogen (NH4+-N), rather than total nitrogen (TN) in soil and water. N2O was mainly produced from nitrate nitrogen (NO3--N) in soil and water, as well as NH4+-N in water. The increase in NH3 volatilization and N2O emission in DG and OF treatments, was attributed to the reduced competition among bacterial communities, rather than the increased bacterial activity and genic copies. These findings offer valuable insights for managing nutrient loss and gaseous emissions in saline-alkali paddy fields.
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Affiliation(s)
- Hu Cui
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Hui Zhu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China.
| | - Fu-Man Zhang
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Xin-Yi Wang
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Sheng-Nan Hou
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Wei-Dong Feng
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
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Xing J, Li X, Li Z, Wang X, Hou N, Li D. Remediation of soda-saline-alkali soil through soil amendments: Microbially mediated carbon and nitrogen cycles and remediation mechanisms. Sci Total Environ 2024; 924:171641. [PMID: 38471593 DOI: 10.1016/j.scitotenv.2024.171641] [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: 01/08/2024] [Revised: 03/06/2024] [Accepted: 03/09/2024] [Indexed: 03/14/2024]
Abstract
Due to the high salt content and pH value, the structure of saline-sodic soil was deteriorated, resulting in decreased soil fertility and inhibited soil element cycling. This, in turn, caused significant negative impacts on crop growth, posing a major challenge to global agriculture and food security. Despite numerous studies aimed at reducing the loss of plant productivity in saline-sodic soils, the knowledge regarding shifts in soil microbial communities and carbon/nitrogen cycling during saline-sodic soil improvement remains incomplete. Consequently, we developed a composite soil amendment to explore its potential to alleviate salt stress and enhance soil quality. Our findings demonstrated that the application of this composite soil amendment effectively enhanced microbial salinity resistance, promotes soil carbon fixation and nitrogen cycling, thereby reducing HCO3- concentration and greenhouse gas emissions while improving physicochemical properties and enzyme activity in the soil. Additionally, the presence of CaSO4 contributed to a decrease in water-soluble Na+ content, resulting in reduced soil ESP and pH by 14.64 % and 7.42, respectively. Our research presents an innovative approach to rehabilitate saline-sodic soil and promote ecological restoration through the perspective of elements cycles.
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Affiliation(s)
- Jie Xing
- Heilongjiang Academy of Environmental Sciences, Harbin, Heilongjiang 150056, PR China
| | - Xianyue Li
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, 150030, PR China
| | - Zhaoquan Li
- Heilongjiang Academy of Environmental Sciences, Harbin, Heilongjiang 150056, PR China
| | - Xiaotong Wang
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, 150030, PR China
| | - Ning Hou
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, 150030, PR China.
| | - Dapeng Li
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, 150030, PR China.
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Ali J, Faridi S, Kashyap A, Shabnam, Noori R, Sardar M. Surface expression of carbonic anhydrase on E. coli as a sustainable approach for enzymatic CO 2 capture. Enzyme Microb Technol 2024; 176:110422. [PMID: 38402827 DOI: 10.1016/j.enzmictec.2024.110422] [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: 12/09/2023] [Revised: 01/22/2024] [Accepted: 02/16/2024] [Indexed: 02/27/2024]
Abstract
The utilisation of carbonic anhydrase (CA) in CO2 sequestration is becoming prominent as an efficient, environment friendly and rapid catalyst for capturing CO2 from industrial emissions. However, the application of CA enzyme in soluble form is constrained due to its poor stability in operational conditions of CO2 capture and also production cost of the enzyme. Addressing these limitations, the present study focuses on the surface display of CA from Bacillus halodurans (BhCA) on E coli aiming to contribute to the cost-effectiveness of carbon capture through CA technology. This involved the fusion of the BhCA-encoding gene with the adhesion molecule involved in diffuse adherence (AIDA-I) autotransporter, resulting in the efficient display of BhCA (595 ± 60 U/gram dry cell weight). Verification of the surface display of BhCA was accomplished by conjugating with FITC labelled anti-his antibody followed by fluorescence-activated cell sorting (FACS) and cellular fractionation in conjunction with zymography. Biochemical characterisation of whole-cell biocatalyst revealed a noteworthy enhancement in thermostability, improvement in the thermostability with T1/2 of 90 ± 1.52 minutes at 50 ˚C, 36 ± 2.51 minutes at 60 ˚C and18 ± 1.52 minutes at 80˚C. Surface displayed BhCA displayed remarkable reusability retaining 100% activity even after 15 cycles. Surface displayed BhCA displayed highly alkali stable nature like free counterpart in solution. The alkali stability of the surface-displayed BhCA was comparable to its free counterpart in solution. Furthermore, the study investigated the impact of different metal ions, modulators, and detergents on the whole-cell biocatalysts. The present work represents the first report on surface display of CA utilising the AIDA-1 autotransporter.
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Affiliation(s)
- Juned Ali
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Shazia Faridi
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Amuliya Kashyap
- Department of Microbiology, University of Delhi South Campus, New Delhi 110021, India
| | - Shabnam
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rubia Noori
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Meryam Sardar
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India.
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Neri S, Mascolini MV, Peruffo A, Todros S, Zuin M, Cordaro L, Martines E, Contiero B, Carniel EL, Iacopetti I, Patruno M, Fontanella CG, Perazzi A. How does atmospheric pressure cold helium plasma affect the biomechanical behaviour on alkali-lesioned corneas? BMC Vet Res 2024; 20:153. [PMID: 38659026 PMCID: PMC11041036 DOI: 10.1186/s12917-024-03980-6] [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: 11/16/2023] [Accepted: 03/15/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND Melting corneal ulcers are a serious condition that affects a great number of animals and people around the world and it is characterised by a progressive weakening of the tissue leading to possible severe ophthalmic complications, such as visual impairment or blindness. This disease is routinely treated with medical therapy and keratoplasty, and recently also with alternative regenerative therapies, such as cross-linking, amniotic membrane transplant, and laser. Plasma medicine is another recent example of regenerative treatment that showed promising results in reducing the microbial load of corneal tissue together with maintaining its cellular vitality. Since the effect of helium plasma application on corneal mechanical viscoelasticity has not yet been investigated, the aim of this study is first to evaluate it on ex vivo porcine corneas for different exposition times and then to compare the results with previous data on cross-linking treatment. RESULTS 94 ex vivo porcine corneas divided into 16 populations (healthy or injured, fresh or cultured and treated or not with plasma or cross-linking) were analysed. For each population, a biomechanical analysis was performed by uniaxial stress-relaxation tests, and a statistical analysis was carried out considering the characteristic mechanical parameters. In terms of equilibrium normalised stress, no statistically significant difference resulted when the healthy corneas were compared with lesioned plasma-treated ones, independently of treatment time, contrary to what was obtained about the cross-linking treated corneas which exhibited more intense relaxation phenomena. CONCLUSIONS In this study, the influence of the Helium plasma treatment was observed on the viscoelasticity of porcine corneas ex vivo, by restoring in lesioned tissue a degree of relaxation similar to the one of the native tissue, even after only 2 min of application. Therefore, the obtained results suggest that plasma treatment is a promising new regenerative ophthalmic therapy for melting corneal ulcers, laying the groundwork for further studies to correlate the mechanical findings with corneal histology and ultrastructural anatomy after plasma treatment.
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Affiliation(s)
- Simona Neri
- Department of Animal Medicine, Production and Health, University of Padua, Padova, Italy.
| | - Maria Vittoria Mascolini
- Department of Industrial Engineering, University of Padua, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padua, Padova, Italy
| | - Antonella Peruffo
- Department of Comparative Biomedicine and Food Science, University of Padua, Padova, Italy.
| | - Silvia Todros
- Department of Industrial Engineering, University of Padua, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padua, Padova, Italy
| | - Matteo Zuin
- RFX (CNR, ENEA, INFN), Padova, Italy
- CNR, Institute for Plasma Science and Technology, Padova, Italy
| | - Luigi Cordaro
- RFX (CNR, ENEA, INFN), Padova, Italy
- CNR, Institute for Plasma Science and Technology, Padova, Italy
| | - Emilio Martines
- Department of Physics "G. Occhialini", University of Milano - Bicocca, Milano, Italy
| | - Barbara Contiero
- Department of Animal Medicine, Production and Health, University of Padua, Padova, Italy
| | - Emanuele Luigi Carniel
- Department of Industrial Engineering, University of Padua, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padua, Padova, Italy
| | - Ilaria Iacopetti
- Department of Animal Medicine, Production and Health, University of Padua, Padova, Italy
| | - Marco Patruno
- Department of Comparative Biomedicine and Food Science, University of Padua, Padova, Italy
| | - Chiara Giulia Fontanella
- Department of Industrial Engineering, University of Padua, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padua, Padova, Italy
| | - Anna Perazzi
- Department of Animal Medicine, Production and Health, University of Padua, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padua, Padova, Italy
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Wang X, Riaz M, Xia X, Babar S, El-Desouki Z, Li Y, Wang J, Jiang C. Alleviation of cotton growth suppression caused by salinity through biochar is strongly linked to the microbial metabolic potential in saline-alkali soil. Sci Total Environ 2024; 922:171407. [PMID: 38432366 DOI: 10.1016/j.scitotenv.2024.171407] [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: 11/23/2023] [Revised: 02/08/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
Biochar is a typical soil organic amendment; however, there is limited understanding of its impact on the metabolic characteristics of microorganisms in saline-alkaline soil microenvironment, as well as the advantages and disadvantages of plant-microorganism interactions. To elucidate the mechanisms underlying the impact of saline-alkali stress on cotton, a 6-month pot experiment was conducted, involving the sowing of cotton seedlings in saline-alkali soil. Three different biochar application levels were established: 0 % (C0), 1 % (C1), and 2 % (C2). Results indicated that biochar addition improved the biomass of cotton plants, especially under C2 treatment; the dry weight of cotton bolls were 8.15 times that of C0. Biochar application led to a rise in the accumulation of photosynthetic pigments by 8.30-51.89 % and carbohydrates by 7.4-10.7 times, respectively. Moreover, peroxidase (POD) activity, the content of glutathione (GSH), and ascorbic acid (ASA) were elevated by 23.97 %, 118.39 %, and 48.30 % under C2 treatment, respectively. Biochar caused a reduction in Na+ uptake by 8.21-39.47 %, relative electrical conductivity (REC) of plants, and improved K+/Na+ and Ca2+/Na+ ratio indicating that biochar alleviated salinity-caused growth reduction. Additionally, the application of biochar enhanced the absorption intensity of polysaccharide fingerprints in cotton leaves and roots. Two-factor co-occurrence analysis indicated that the key differential metabolites connected to several metabolic pathways were L-phenylalanine, piperidine, L-tryptophan, and allysine. Interestingly, biochar altered the metabolic characteristics of saline-alkali soil, especially related to the biosynthesis and metabolism of amino acids and purine metabolism. In conclusion, this study demonstrates that biochar may be advantageous in saline soil microenvironment; it has a favorable impact on how plants and soil microbial metabolism interact.
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Affiliation(s)
- Xiangling Wang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Muhammad Riaz
- College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, PR China
| | - Xiaoyang Xia
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Saba Babar
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Zeinab El-Desouki
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Yuxuan Li
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Jiyuan Wang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Cuncang Jiang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
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11
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Peng Z, Zulfiqar T, Yang H, Wang M, Zhang F. Effect of Arbuscular Mycorrhizal Fungi (AMF) on photosynthetic characteristics of cotton seedlings under saline-alkali stress. Sci Rep 2024; 14:8633. [PMID: 38622240 PMCID: PMC11018861 DOI: 10.1038/s41598-024-58979-8] [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: 11/12/2023] [Accepted: 04/05/2024] [Indexed: 04/17/2024] Open
Abstract
The study aimed to find the best Arbuscular Mycorrhizal Fungi (AMF) strain for cotton growth in Xinjiang's salinity and alkali conditions. Cotton (Xinluzao 45) was treated with Funneliformis mosseae (GM), Rhizophagus irregularis (GI), and Claroideoglomus etunicatum (GE) as treatments, while untreated cotton served as the control (CK). Salinity stress was applied post-3-leaf stage in cotton. The study analyzed cotton's reactions to diverse saline-alkali stresses, focusing on nutrient processes and metabolism. By analyzing the growth and photosynthetic characteristics of plants inoculated with Funneliformis mosseae to evaluate its salt tolerance. Saline-alkali stress reduced chlorophyll and hindered photosynthesis, hampering cotton growth. However, AMF inoculation mitigated these effects, enhancing photosynthetic rates, CO2 concentration, transpiration, energy use efficiency, and overall cotton growth under similar stress levels. GM and GE treatments yielded similar positive effects. AMF inoculation enhanced cotton plant height and biomass. In GM treatment, cotton exhibited notably higher root length than other treatments, showing superior growth under various conditions. In summary, GM-treated cotton had the highest infection rate, followed by GE-treated cotton, with GI-treated cotton having the lowest rate (GM averaging 0.95). Cotton inoculated with Funneliformis mosseae, Rhizophagus irregularis, and Claroideoglomus etunicatum juvenile showed enhanced chlorophyll and photosynthetic levels, reducing salinity effects. Funneliformis mosseae had the most significant positive impact.
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Affiliation(s)
- Zicheng Peng
- Agricultural College, Shihezi University, Shihezi, 832003, Xinjiang, People's Republic of China
| | - Tayyaba Zulfiqar
- Agricultural College, Shihezi University, Shihezi, 832003, Xinjiang, People's Republic of China
| | - Haichang Yang
- Agricultural College, Shihezi University, Shihezi, 832003, Xinjiang, People's Republic of China.
| | - Ming Wang
- Agricultural College, Shihezi University, Shihezi, 832003, Xinjiang, People's Republic of China
| | - Fenghua Zhang
- Agricultural College, Shihezi University, Shihezi, 832003, Xinjiang, People's Republic of China
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12
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Liu Z, Liu K, Shi S, Chen X, Gu X, Wang W, Mao K, Yibulayi R, Wu W, Zeng L, Zhou W, Lin X, Zhang F, Lou B. Alkali injury-induced pathological lymphangiogenesis in the iris facilitates the infiltration of T cells and ocular inflammation. JCI Insight 2024; 9:e175479. [PMID: 38587075 DOI: 10.1172/jci.insight.175479] [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: 09/05/2023] [Accepted: 02/14/2024] [Indexed: 04/09/2024] Open
Abstract
Inflammatory lymphangiogenesis is intimately linked to immune regulation and tissue homeostasis. However, current evidence has suggested that classic lymphatic vessels are physiologically absent in intraocular structures. Here, we show that neolymphatic vessels were induced in the iris after corneal alkali injury (CAI) in a VEGFR3-dependent manner. Cre-loxP-based lineage tracing revealed that these lymphatic endothelial cells (LECs) originate from existing Prox1+ lymphatic vessels. Notably, the ablation of iridial lymphangiogenesis via conditional deletion of VEGFR3 alleviated the ocular inflammatory response and pathological T cell infiltration. Our findings demonstrate that iridial neolymphatics actively participate in pathological immune responses following injury and suggest intraocular lymphangiogenesis as a valuable therapeutic target for the treatment of ocular inflammation.
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Affiliation(s)
- Zheng Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Keli Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Shunhua Shi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Xun Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Xinyu Gu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Weifa Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Keli Mao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Rukeye Yibulayi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Wanwen Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Lei Zeng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Weibin Zhou
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaofeng Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Feng Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Bingsheng Lou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
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13
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Feng D, Yu Y, Wang J, Liang S. Experimental study on municipal solid waste incineration bottom ash as a component of alkali-activated coal gangue-based geopolymer. Environ Sci Pollut Res Int 2024; 31:26153-26169. [PMID: 38492142 DOI: 10.1007/s11356-024-32945-3] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
This study explores the potential of municipal solid waste incineration bottom ash (MSWI BA) and coal gangue as precursors for alkali-activated cementitious materials (CG-MBA). An examination of the impact of MSWI BA content, NaOH/Na2SiO3 ratio, liquid-solid ratio, and NaOH concentration on strength and reaction through the application of diverse analytical methodologies. Results demonstrate that CG-MBA offers significant environmental benefits compared to conventional cement. When used as a construction filling material, CG-MBA exhibits a remarkable 74.5 ~ 79.2 wt% reduction in carbon dioxide emissions and 70.6 ~ 77.0 wt% reduction in energy consumption. Additionally, CG-MBA effectively immobilizes heavy metal ions in MSWI BA, with a fixation efficiency exceeding 56.0%. These findings suggest that CG-MBA is a promising sustainable solution for waste management, offering significant environmental benefits while demonstrating effective heavy metal immobilization. This approach contributes to pollution control and promotes environmental sustainability in the construction industry.
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Affiliation(s)
- Deluan Feng
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yang Yu
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jie Wang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Shihua Liang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
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14
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Li J, Chen Y, Zhang Y, Wu J, Guo C, Jin Y, Wang Y. Effects of alkali and alkaline earth metals on co-combustion of sewage sludge and coal slime: Combustion characteristics, interactions, and kinetics. J Environ Manage 2024; 356:120735. [PMID: 38537474 DOI: 10.1016/j.jenvman.2024.120735] [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: 11/30/2023] [Revised: 02/22/2024] [Accepted: 03/19/2024] [Indexed: 04/07/2024]
Abstract
The co-combustion of sewage sludge (SS) and coal slime (CS) is a preferred method for their resource utilization, however, alkali and alkaline earth metals (AAEMs) in SS may affect the co-combustion process. In this work, the co-combustion behavior of AAEMs-rich SS and CS was investigated in terms of combustion characteristics, interactions, and combustion kinetics using a thermogravimetric analyzer. Further, the role of AAEMs in co-combustion was evaluated by loading Ca, K, Na, and Mg individually after pickling. The results revealed that co-combustion compensated for the limitations of the individual combustion processes, with SS reducing ignition and burnout temperatures and CS improving the comprehensive combustion characterization. Principal component analysis (PCA) showed that the effect of CS on co-combustion was more significant compared to SS. Significant synergies were observed in the weight loss phase of fixed carbon in the blends with 40%, 50%, and 60% CS ratios, where the peak temperature of fixed carbon combustion was reduced by 9.8 °C, 12.6 °C, and 13.1 °C, respectively, compared to the theoretical values. The effects of AAEMs on combustion were as follows: all AAEMs promoted the precipitation of volatiles except Ca, which showed inhibition of light volatiles; AAEMs had a significant catalytic effect on fixed carbon combustion. The improvement effect of AAEMs on the comprehensive combustion characteristics during co-combustion was Na > K > Mg > Ca. The catalytic effect of Na on fixed carbon was strongest at a loading of 5%, leading to a decrease in the apparent activation energy of fixed carbon combustion by 22.2 kJ/mol and a change in reactor order from n = 1 to n = 1.2 during co-combustion. This work provides a better understanding of the role of AAEMs in SS-CS co-combustion.
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Affiliation(s)
- Jingkuan Li
- School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, Shanxi, China
| | - Yun Chen
- Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, Shanxi, China
| | - Yuanyuan Zhang
- Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, Shanxi, China
| | - Jiao Wu
- School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, Shanxi, China
| | - Congxiu Guo
- School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, Shanxi, China
| | - Yan Jin
- School of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yanlin Wang
- School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, Shanxi, China.
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15
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Wang L, Yin G, Chang Y, Qiao S. Carbon-rich and low-ash hydrochar formation from sewage sludge by alkali-thermal hydrolysis coupled with acid-assisted hydrothermal carbonization. Waste Manag 2024; 177:182-195. [PMID: 38330514 DOI: 10.1016/j.wasman.2024.01.052] [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: 05/08/2023] [Revised: 01/23/2024] [Accepted: 01/30/2024] [Indexed: 02/10/2024]
Abstract
The production of carbon-rich and low-ash hydrochar from sewage sludge is attracting interest due to its great application prospect in high value-added carbon materials fields, but which is impossible through direct hydrothermal carbonization. In this study, alkali-thermal hydrolysis followed by acid-assisted hydrothermal carbonization was thus proposed. Thermal hydrolysis at strong alkaline environment was more effective than acid one to promote the dissolution of organic matters and restrain the release of inorganic matters from sludge, which created a favorable condition for hydrochar formation in a carbon-rich and low-ash way. Alkali-thermal hydrolysis began to show a positive effect on the dissolution of organics in sludge when temperature exceeded the threshold of 90 °C, and an increase of 9.77 % was found at 150 °C when compared to 30 °C. Acid-assisted hydrothermal carbonization of alkali-thermal hydrolysate (ATH) at pH 1.0 strongly promoted condensation polymerization of dissolved organics to form hydrochar and meanwhile inhibited introduction of dissolved inorganics. The nanosized microparticulate hydrochar derived from ATH-30 had a carbon and ash content of 50.98-61.31 % and 10.76-12.09 %, while the micro-sized microspheric hydrochar with multiple deposition layers formed from ATH-150 showed a better performance in carbon-rich and low-ash aspect where a carbon and ash content of 58.24-70.07 % and 0.40-3.24 % was realized, both of which were obviously superior to the direct hydrochar (carbon 34.86 % and ash 46.11 %). The condensation of dissolved organics during alkali-thermal hydrolysis stage is important to the carbonization degree of hydrochar. This study provides a new perspective in sludge disposal and production of advanced carbon materials.
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Affiliation(s)
- Liping Wang
- School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China.
| | - Gaotian Yin
- School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
| | - Yuzhi Chang
- Environmental Monitoring Center, Jining Ecology and Environment Sub-bureau, Ulanqab 012000, Inner Mongolia, China
| | - Shiliang Qiao
- School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
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16
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Zhang X, Zhang G, Yan Q, Ahmad B, Pei J, Huang L. Quality variation and salt-alkali-tolerance mechanism of Cynomorium songaricum: Interacting from microbiome-transcriptome-metabolome. Sci Total Environ 2024; 919:170801. [PMID: 38340858 DOI: 10.1016/j.scitotenv.2024.170801] [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: 11/24/2023] [Revised: 01/22/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
Addressing soil salinization and implementing sustainable practices for cultivating cash crops on saline-alkali land is a prominent global challenge. Cynomorium songaricum is an important salt-alkali tolerant medicinal plant capable of adapting to saline-alkali environments. In this study, two typical ecotypes of C. songaricum from the desert-steppe (DS) and saline-alkali land (SAL) habitats were selected. Through the integration of multi-omics with machine learning, the rhizosphere microbial communities, genetic maps, and metabolic profiles of two ecotypes were created and the crucial factors for the adaptation of C. songaricum to saline-alkali stress were identified, including 7 keystone OTUs (i.e. Novosphingobium sp., Sinorhizobium meliloti, and Glycomyces sp.), 5 core genes (cell wall-related genes), and 10 most important metabolites (i.e. cucurbitacin D and 3-Hydroxybutyrate) were identified. Our results indicated that under saline-alkali environments, the microbial competition might become more intense, and the microbial community network had the simple but stable structure, accompanied by the changes in the gene expression related to cell wall for adaptation. However, this regulation led to the reduction in active ingredients, such as the accumulation of flavonoids and organic acid, and enhanced the synthesis of bitter substances (cucurbitacin D), resulting in the decrease in the quality of C. songaricum. Therefore, compared to the SAL ecotype, the DS was more suitable for the subsequent development of medicinal and edible products of C. songaricum. Furthermore, to explore the reasons for this quality variation, we constructed a comprehensive microbial-genetic-metabolic regulatory network, revealing that the metabolism of C. songaricum was primarily influenced by genetic factors. These findings not only offer new insights for future research into plant salt-alkali tolerance strategies but also provide a crucial understanding for cultivating high-quality medicinal plants.
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Affiliation(s)
- Xinke Zhang
- Key lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Guoshuai Zhang
- Key lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Qi Yan
- Key lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Bashir Ahmad
- Center for Biotechnology & Microbiology, University of Peshawar, 25000 Peshawar, Pakistan
| | - Jin Pei
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China.
| | - Linfang Huang
- Key lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China.
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17
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Tablit S, Krache R, Amroune S, Jawaid M, Hachaichi A, Ismail AS, Meraj A. Effect of chemical treatments of arundo donax L. fibre on mechanical and thermal properties of the PLA/PP blend composite filament for FDM 3D printing. J Mech Behav Biomed Mater 2024; 152:106438. [PMID: 38359736 DOI: 10.1016/j.jmbbm.2024.106438] [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: 12/03/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/17/2024]
Abstract
Arundo donax L. is investigated in this study as a suitable reinforcing agent for PLA/PP waste blend 3D printing filament. To improve the compatibility of the fibre and polymer, the Arundo fibre was chemically modified using alkali and silane treatment. Untreated and treated fibres were extruded with Polymer blends before being 3D printed. Effect of chemical treatment on thermal, mechanical, and morphological properties of the composites was investigated. The tensile, Izod impact, and water absorption of the 3D printed specimens were also tested. The Alkali treated (ALK) and combination of alkali and silane treatment (SLN) composites displayed good results. Tensile strength and modulus of the materials increased, as well as their maintained stability in the Izod impact test, demonstrating that the incorporation of ArF did not result in a loss in performance. SEM examination supported these findings by confirming the creation of beneficial interfacial contacts between the matrix and fibre components, as demonstrated by the lack of void between the matrix and the fibre surface. Furthermore, the alkali treatment of the ArF resulted in a considerable reduction in water absorption inside the biocomposite, with a 64% reduction seen in ALK composite comparison to the untreated composite (Un). After the 43-day assessment period.
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Affiliation(s)
- Sarra Tablit
- Laboratory Multiphas Polymeric Materials (LMPMP), Faculty of Technology, University Ferhat Abbas Setif-1, Setif, Algeria
| | - Rachida Krache
- Laboratory Multiphas Polymeric Materials (LMPMP), Faculty of Technology, University Ferhat Abbas Setif-1, Setif, Algeria
| | - Salah Amroune
- Laboratory of Materials and Mechanics of Structures (LMMS), Mechanical Engineering Department, Faculty of Technology, Mohamed BOUDIAF University, M'sila, Algeria
| | - Mohammad Jawaid
- Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain, P.O. Box 15551, United Arab Emirates.
| | - Amina Hachaichi
- Department of Material Sciences, Faculty of Science and Technology, University Mohamed El Bachir El Ibrahimi, El Anasser, Bordj Bou Arreridj, 34030, Algeria
| | - Ahmad Safwan Ismail
- Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia
| | - Aatikah Meraj
- Laboratory of Biopolymers and Derivates, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia
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18
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Liang J, Han J, Zhou M, Fakayode OA, Yagoub AEA, Li H, Ren M, Kong F, Zhou C. Ultrasonic-enhanced photocatalysis through piezoelectric and cavitation effects for lignin depolymerization. Int J Biol Macromol 2024; 264:130526. [PMID: 38431008 DOI: 10.1016/j.ijbiomac.2024.130526] [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: 10/29/2023] [Revised: 02/18/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Although a promising method for lignin depolymerization, photocatalysis faces the challenge of low efficiency. In this study, MoS2/ZnO heterojunction catalysts, endowed with piezocatalysis and photocatalytic capabilities, were crafted through Zn ion intercalation for the depolymerization of phenoxyphenylethanol (PP-ol) and alkali lignin. Then, the synergistic interplay between ultrasonic-induced piezoelectric fields and heterojunctions was analyzed. The amalgamation of the piezoelectric field and heterojunction in MoS2/ZnO catalysts resulted in a diminished photogenerated hole/electron recombination efficiency, thereby fostering the generation of ·OH during the reaction. This pivotal role of ·OH emerged as a crucial reactive substance, converting 95.8 % of PP-ol through β-O-4 bond breaking within a 3-h treatment. By incorporating ultrasonic, the contact probability of PP-ol with the catalyst was significantly improved, resulting in efficient conversion even with a reduced amount of acetonitrile in the solvent system (20 %). Furthermore, ultrasonic-light methods show high efficiency for depolymerizing Alkali lignin (AL), with 33.2 % of lignin undergoing depolymerization in a 4-h treatment. This treatment simultaneously reduces the molecular weight of AL and cleaves numerous chemical bonds within it. Overall, this work presents a green approach to lignin depolymerization, providing insights into the synergistic action of ultrasonic and photocatalysis.
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Affiliation(s)
- Jiakang Liang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jingyi Han
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Man Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Olugbenga Abiola Fakayode
- Department of Mechanical Engineering, 10-263 Donadeo lnnovation Centre for Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Abu ElGasim Ahmed Yagoub
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Haoxin Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Manni Ren
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Fangong Kong
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Cunshan Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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19
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Li Z, Huang W, Zhang M, Huo Y, Li F, Song L, Wu S, Yang Q, Li X, Zhang J, Yang L, Hao J, Kang L. Minocycline-loaded nHAP/PLGA microspheres for prevention of injury-related corneal angiogenesis. J Nanobiotechnology 2024; 22:134. [PMID: 38549081 PMCID: PMC10979583 DOI: 10.1186/s12951-024-02317-7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 01/26/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Corneal neovascularization (CoNV) threatens vision by disrupting corneal avascularity, however, current treatments, including pharmacotherapy and surgery, are hindered by limitations in efficacy and adverse effects. Minocycline, known for its anti-inflammatory properties, could suppress CoNV but faces challenges in effective delivery due to the cornea's unique structure. Therefore, in this study a novel drug delivery system using minocycline-loaded nano-hydroxyapatite/poly (lactic-co-glycolic acid) (nHAP/PLGA) nanoparticles was developed to improve treatment outcomes for CoNV. RESULTS Ultra-small nHAP was synthesized using high gravity technology, then encapsulated in PLGA by a double emulsion method to form nHAP/PLGA microspheres, attenuating the acidic by-products of PLGA degradation. The MINO@PLGA nanocomplex, featuring sustained release and permeation properties, demonstrated an efficient delivery system for minocycline that significantly inhibited the CoNV area in an alkali-burn model without exhibiting apparent cytotoxicity. On day 14, the in vivo microscope examination and ex vivo CD31 staining corroborated the inhibition of neovascularization, with the significantly smaller CoNV area (29.40% ± 6.55%) in the MINO@PLGA Tid group (three times daily) than that of the control group (86.81% ± 15.71%), the MINO group (72.42% ± 30.15%), and the PLGA group (86.87% ± 14.94%) (p < 0.05). Fluorescein sodium staining show MINO@PLGA treatments, administered once daily (Qd) and three times daily (Tid) demonstrated rapid corneal epithelial healing while the Alkali injury group and the DEX group showed longer healing times (p < 0.05). Additionally, compared to the control group, treatments with dexamethasone, MINO, and MINO@PLGA were associated with an increased expression of TGF-β as evidenced by immunofluorescence, while the levels of pro-inflammatory cytokines IL-1β and TNF-α demonstrated a significant decrease following alkali burn. Safety evaluations, including assessments of renal and hepatic biomarkers, along with H&E staining of major organs, revealed no significant cytotoxicity of the MINO@PLGA nanocomplex in vivo. CONCLUSIONS The novel MINO@PLGA nanocomplex, comprising minocycline-loaded nHAP/PLGA microspheres, has shown a substantial capacity for preventing CoNV. This study confirms the complex's ability to downregulate inflammatory pathways, significantly reducing CoNV with minimal cytotoxicity and high biosafety in vivo. Given these findings, MINO@PLGA stands as a highly promising candidate for ocular conditions characterized by CoNV.
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Affiliation(s)
- Zitong Li
- Department of Ophthalmology, Peking University First Hospital, Beijing, 100034, People's Republic of China
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, 100034, People's Republic of China
| | - Wenpeng Huang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, 100034, People's Republic of China
| | - Ming Zhang
- Department of Pathology, Peking University International Hospital, Beijing, China
| | - Yan Huo
- Department of Ophthalmology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Feifei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Lele Song
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, 100034, People's Republic of China
| | - Sitong Wu
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, 100034, People's Republic of China
| | - Qi Yang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, 100034, People's Republic of China
| | - Xiaoming Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Jianjun Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
| | - Liu Yang
- Department of Ophthalmology, Peking University First Hospital, Beijing, 100034, People's Republic of China.
| | - Jianchen Hao
- Department of Ophthalmology, Peking University First Hospital, Beijing, 100034, People's Republic of China.
| | - Lei Kang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, 100034, People's Republic of China.
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20
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Cabrera-Villamizar LA, Ebrahimi M, Martínez-Abad A, Talens-Perales D, López-Rubio A, Fabra MJ. Order matters: Methods for extracting cellulose from rice straw by coupling alkaline, ozone and enzymatic treatments. Carbohydr Polym 2024; 328:121746. [PMID: 38220332 DOI: 10.1016/j.carbpol.2023.121746] [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: 09/05/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/16/2024]
Abstract
Rice straw is a widely produced residue that can be converted into value-added products. This work aimed at using greener processes combining mild alkali (A), ozone (O) and enzymatic (engineered xylanase) (E) treatments to extract cellulose and other value-added compounds from rice straw and to evaluate the effects of the order of the treatments. Solid (S) and liquid (L) fractions from the process were collected for physicochemical characterization. AOE treatment showed the best capacity to extract high purity cellulose and other valuable compounds. The lignin content was significantly decreased independently of the order of the treatments and, its content in the extract obtained after the AOE process was lower than the one obtained after the OAE process. Moreover, thermal stability of the samples increased after the enzymatic process, being higher in SAOE. The alkaline treatment increased the hemicellulose and polyphenol content (antioxidant activity) in the liquid fractions (LA and LOA). In contrast, the ozonized liquid fractions had lower polyphenol content. Therefore, alkali was fundamental in the process. In conclusion, the AOE strategy could be a more environmentally friendly method for extracting cellulose and other valuable compounds, which could be used to develop active materials in the future.
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Affiliation(s)
- Laura Andrea Cabrera-Villamizar
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology (IATA), CSIC, 46980, Valencia, Spain.
| | - Mahrokh Ebrahimi
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology (IATA), CSIC, 46980, Valencia, Spain; Institut Polytechnique UniLaSalle, Université d'Artois, ULR 7519, 19 rue Pierre Waguet, BP 30313, 60026 Beauvais Cédex, France.
| | - Antonio Martínez-Abad
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology (IATA), CSIC, 46980, Valencia, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast), CSIC, 28006 Madrid, Spain.
| | - David Talens-Perales
- Food Biotechnology Department, Institute of Agrochemistry and Food Technology (IATA), CSIC, 46980, Valencia, Spain.
| | - Amparo López-Rubio
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology (IATA), CSIC, 46980, Valencia, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast), CSIC, 28006 Madrid, Spain.
| | - María José Fabra
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology (IATA), CSIC, 46980, Valencia, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast), CSIC, 28006 Madrid, Spain.
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21
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Zhao XF, Huang J, Li W, Wang SY, Liang LQ, Zhang LM, Liew HJ, Chang YM. Rh proteins and H + transporters involved in ammonia excretion in Amur Ide (Leuciscus waleckii) under high alkali exposure. Ecotoxicol Environ Saf 2024; 273:116160. [PMID: 38432157 DOI: 10.1016/j.ecoenv.2024.116160] [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: 08/03/2023] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
High alkaline environment can lead to respiratory alkalosis and ammonia toxification to freshwater fish. However, the Amur ide (Leuciscus waleckii), which inhabits an extremely alkaline lake in China with titratable alkalinity up to 53.57 mM (pH 9.6) has developed special physiological and molecular mechanisms to adapt to such an environment. Nevertheless, how the Amur ide can maintain acid-base balance and perform ammonia detoxification effectively remains unclear. Therefore, this study was designed to study the ammonia excretion rate (Tamm), total nitrogen accumulation in blood and tissues, including identification, expression, and localization of ammonia-related transporters in gills of both the alkali and freshwater forms of the Amur ide. The results showed that the freshwater form Amur ide does not have a perfect ammonia excretion mechanism exposed to high-alkaline condition. Nevertheless, the alkali form of Amur ide was able to excrete ammonia better than freshwater from Amur ide, which was facilitated by the ionocytes transporters (Rhbg, Rhcg1, Na+/H+ exchanger 2 (NHE2), and V-type H+ ATPase (VHA)) in the gills. Converting ammonia into urea served as an ammonia detoxication strategy to reduced endogenous ammonia accumulation under high-alkaline environment.
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Affiliation(s)
- Xue Fei Zhao
- National and Local Joint Engineering Laboratory for Freshwater Fish Breeding, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
| | - Jing Huang
- National and Local Joint Engineering Laboratory for Freshwater Fish Breeding, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
| | - Wen Li
- National and Local Joint Engineering Laboratory for Freshwater Fish Breeding, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 2000, China
| | - Shuang Yi Wang
- National and Local Joint Engineering Laboratory for Freshwater Fish Breeding, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Li Qun Liang
- National and Local Joint Engineering Laboratory for Freshwater Fish Breeding, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
| | - Li Min Zhang
- National and Local Joint Engineering Laboratory for Freshwater Fish Breeding, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
| | - Hon Jung Liew
- Higher Institution Center of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries, Universiti of Malaysia Terengganu, Kuala Nerus, Terengganu 21030, Malaysia
| | - Yu Mei Chang
- National and Local Joint Engineering Laboratory for Freshwater Fish Breeding, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China.
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22
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Zhang X, Yao J, Yan Y, Huang X, Zhang Y, Tang Y, Yang Y. Reversible Deacidification and Preventive Conservation of Paper-Based Cultural Relics by Mineralized Bacterial Cellulose. ACS Appl Mater Interfaces 2024; 16:13091-13102. [PMID: 38422229 DOI: 10.1021/acsami.3c19050] [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: 03/02/2024]
Abstract
Paper-based cultural relics experience irreversible aging and deterioration during long-term preservation. The most common process of paper degradation is the acid-catalyzed hydrolysis of cellulose. Nowadays, deacidification has been considered as a practical way to protect acidified literature; however, two important criteria of minimal intervention and reversibility should be considered. Inspired by the superior properties of bacterial cellulose (BC) and its structural similarity to paper, herein, the mineralized BC membranes are applied to deacidification and conservation of paper-based materials for the first time. Based on the enzyme-induced mineralization process, the homogeneous and high-loaded calcifications of hydroxyapatite (HAP) and calcium carbonate (CaCO3) nanoparticles onto the nanofibers of BC networks have been achieved, respectively. The size, morphology, structure of minerals, as well as the alkalinity and alkali reserve of BC membranes are well controlled by regulating enzyme concentration and mineralization time. Compared with HAP/CaCO3-immersed method, HAP/CaCO3-BC membranes show more efficient and sustained deacidification performance on paper. The weak alkalinity of mineralized BC membranes avoids the negative effect of alkali on paper, and the high alkali reserve implies a good sustained-release effect of alkali to neutralize the future generated acid. The multiscale nanochannels of the BC membrane provide ion exchange and acid/alkali neutralization channels between paper and the BC membrane, and the final pH of protected paper can be well stabilized in a certain range. Most importantly, this BC-deacidified method is reversible since the BC membrane can be removed without causing any damage to paper and the original structure and fiber morphology of paper are well preserved. In addition, the mineralized BC membrane provides excellent flame-retardant performance on paper thanks to its unique organic-inorganic composite structure. All of these advantages of the mineralized BC membrane indicate its potential use as an effective protection material for the reversible deacidification and preventive conservation of paper-based cultural relics.
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Affiliation(s)
- Xu Zhang
- Institute for Preservation and Conservation of Chinese Ancient Books, Fudan University Library, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Jingjing Yao
- Shanghai Institute of Quality Inspection and Technical Research, 381 Cang Wu Road, Shanghai 200233, China
| | - Yueer Yan
- Institute for Preservation and Conservation of Chinese Ancient Books, Fudan University Library, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Xizi Huang
- Institute for Preservation and Conservation of Chinese Ancient Books, Fudan University Library, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Yahong Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Yi Tang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Yuliang Yang
- Institute for Preservation and Conservation of Chinese Ancient Books, Fudan University Library, Fudan University, 220 Handan Road, Shanghai 200433, China
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23
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Zhang J, Chen L, Xiao Y, Dai W, Yang L, Zhou L, Zou JP, Luo X, Jing G. Insight into the Alkali Resistance Mechanism of FeMoTiO x Catalysts for NH 3 Selective Catalytic Reduction of NO: Self-Defense Effects of MoO x for Alkali Capture. Environ Sci Technol 2024; 58:4145-4154. [PMID: 38381076 DOI: 10.1021/acs.est.3c08557] [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: 02/22/2024]
Abstract
The deactivation of selective catalytic reduction (SCR) catalysts caused by alkali metal poisoning remains an insurmountable challenge. In this study, we examined the impact of Na poisoning on the performance of Fe and Mo co-doped TiO2 (FeaMobTiOx) catalysts in the SCR reaction and revealed the related alkali resistance mechanism. On the obtained Fe1Mo2.6TiOx catalyst, the synergistic catalytic effect of uniformly dispersed FeOx and MoOx species leads to remarkable catalytic activity, with over 90% NO conversion achieved in a wide temperature range of 210-410 °C. During the Na poisoning process, Na ions predominantly adsorb on the MoOx species, which exhibit stronger alkali resistance, effectively safeguarding the FeOx species. This preferential adsorption minimizes the negative effect of Na poisoning on Fe1Mo2.6TiOx. Moreover, Na poisoning has little influence on the Eley-Rideal reaction pathway involving adsorbed NHx reacting with gaseous NOx. After Na poisoning, the Lewis acid sites were deteriorated, while the abundant Brønsted acid sites ensured sufficient NHx adsorption. As a benefit from the self-defense effects of active MoOx species for alkali capture, FeaMobTiOx exhibits exceptional alkali resistance in the SCR reaction. This research provides valuable insights for the design of highly efficient and alkali-resistant SCR catalysts.
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Affiliation(s)
- Jie Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, People's Republic of China
| | - Liqiu Chen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, People's Republic of China
| | - Yuming Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, People's Republic of China
| | - Weili Dai
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, People's Republic of China
| | - Lixia Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, People's Republic of China
| | - Lei Zhou
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, People's Republic of China
| | - Jian-Ping Zou
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, People's Republic of China
| | - Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, People's Republic of China
- School of Life Science, Jinggangshan University, Ji'an, Jiangxi 343009, People's Republic of China
| | - Guohua Jing
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian 361021, People's Republic of China
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24
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Wang S, Li X, Li Q, Sun Z, Qin M. Preparation and characterization of a novel high barrier mulching film with tunicate cellulose nanocrystals/sodium alginate/alkali lignin. Int J Biol Macromol 2024; 262:129588. [PMID: 38296668 DOI: 10.1016/j.ijbiomac.2024.129588] [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: 09/19/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 02/02/2024]
Abstract
In this study, the base film (CSL) was prepared by blending tunicate cellulose nanocrystals (TCNCs) extracted from tunicate shells, with sodium alginate (SA) and alkali lignin (AL). Then, the mulching film (CSL-WK) was prepared using water-borne polyurethane (WPU) as binder to install low-energy Kaolin on the surface of CSL film. The influences of composition with different concentrations on mechanical properties were studied. The tensile strength and elongation at break of CSL-WK film could reach 86.58 MPa and 50.49 %, respectively. The mulching films were characterized by degradability test, SEM, FTIR, and TGA. TCNCs had good compatibility with SA and AL, and a rough structure was formed on the surface of the film to improve the hydrophobicity. The barrier properties, including ultraviolet resistance, water contact angle, water vapor permeability, water retention, and flame retardancy, were tested. The results showed that CSL-WK films could block 97 % of ultraviolet light, reduce about 25 % of soil water loss, and self-extinguish within 7 s of open flame ignition. Note that the secondary spraying method significantly improved the barrier property of films. This study lays a foundation for the preparation of ecologically friendly, biodegradable, and high barrier mulching film, and expands the application of marine resources.
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Affiliation(s)
- Shujie Wang
- College of Engineering, Qufu Normal University, Rizhao 276826, China
| | - Xiang Li
- College of Engineering, Qufu Normal University, Rizhao 276826, China
| | - Qing Li
- College of Engineering, Qufu Normal University, Rizhao 276826, China
| | - Zhonghua Sun
- College of Chemistry and Chemical Engineering, Taishan University, Taian 271000, China.
| | - Menghua Qin
- College of Qilu Normal University, Jinan 250200, China
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25
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Zhong Y, Huang W, Zheng Y, Chen T, Liu C. Alginate-coated pomelo pith cellulose matrix for probiotic encapsulation and controlled release. Int J Biol Macromol 2024; 262:130143. [PMID: 38367775 DOI: 10.1016/j.ijbiomac.2024.130143] [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: 10/17/2023] [Revised: 02/07/2024] [Accepted: 02/11/2024] [Indexed: 02/19/2024]
Abstract
A novel carrier comprised of ethanol- and alkali-modified cellulosic pomelo pith matrix coated with alginate was developed to improve viability while enabling gastrointestinal release of probiotics. Scanning electron microscopy imaging revealed the agricultural byproduct had a honeycomb-structured cellulose framework, enabling high loading capacity of the probiotic Lactobacillus plantarum up to 9 log CFU/g. Ethanol treatment opened up pores with an average diameter of 97 μm, while alkali treatment increased swelling and porosity, with an average pore size of 51 μm. The survival rate through the stomach was increased from 89.76 % to 91.08 % and 91.24 % after ethanol and alkali modification, respectively. The control group displayed minimal release in the first 4 h followed by a burst release. Both ethanol modification and alkali modification resulted in constant linear release over time. The release time was prolonged when decreasing the width of the pomelo peel rolls from 10 mm to 5 mm while keeping the volume of the peel constant. After 8 weeks of refrigerated storage, the cellulose-encapsulated probiotics retained viability above 7 log CFU/g. This study demonstrates the potential of the structurally intact, sustainably-sourced cellulosic pomelo pith for probiotic encapsulation and controlled delivery.
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Affiliation(s)
- Yejun Zhong
- State Key Laboratory of Food Science and Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi 330047, China; School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi 341000, China
| | - Wenrong Huang
- State Key Laboratory of Food Science and Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi 330047, China
| | - Yawen Zheng
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi 341000, China
| | - Tingting Chen
- State Key Laboratory of Food Science and Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi 330047, China.
| | - Chengmei Liu
- State Key Laboratory of Food Science and Resources, School of Food Science, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi 330047, China
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26
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Tu WH, Zhao Y, Chan WP, Lisak G. Reclaimed seawater discharge - Desalination brine treatment and resource recovery system. Water Res 2024; 251:121096. [PMID: 38184912 DOI: 10.1016/j.watres.2023.121096] [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: 08/31/2023] [Revised: 12/12/2023] [Accepted: 12/30/2023] [Indexed: 01/09/2024]
Abstract
With the proliferation of reverse osmosis technology, seawater reverse osmosis desalination has been heralded as the solution to water scarcity for coastal regions. However, the large volume of desalination brine produced may pose an adverse environmental impact when directly discharged into the sea and result in energy wastage as the seawater pumped out is dumped back into the sea. Recently, zero liquid discharge has been extensively studied as a way to eliminate the aquatic ecotoxicity impact completely, despite being expensive and having a high carbon footprint. In this work, we propose a new strategy towards the treatment of brine to seawater level for disposal, dubbed reclaimed seawater discharge (RSD). This process is coupled with existing resource recovery techniques and waste alkali CO2 capture processes to produce an economically viable waste treatment process with minimal CO2 emissions. In this work, we placed significant focus on the electrolysis of brine, which simultaneously lowers the salinity of the desalination brine (56.0 ± 2.1 g/L) to seawater level (32.0 ± 1.4 g/L), generates alkali brine from seawater (pH 13.6) to remove impurities in brine (Mg2+ and Ca2+ to below ppm level), and recovers magnesium hydroxide, calcium carbonate, chlorine, bromine, and hydrogen gas as valuable resources. The RSD is further chemically dechlorinated and neutralised to pH 7.3 to be safe to discharge into the sea. The excess alkali brine is used to capture additional CO2 in the form of bicarbonates, achieving net abatement in climate change impact (9.90 CO2 e/m3) after product carbon abatements are accounted.
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Affiliation(s)
- Wei Han Tu
- Resource and Reclamation Centre (R3C), Nanyang Environment and Water Research Institute (NEWRI), 1 Clean Tech Loop, 637141, Singapore
| | - Ya Zhao
- Resource and Reclamation Centre (R3C), Nanyang Environment and Water Research Institute (NEWRI), 1 Clean Tech Loop, 637141, Singapore
| | - Wei Ping Chan
- Resource and Reclamation Centre (R3C), Nanyang Environment and Water Research Institute (NEWRI), 1 Clean Tech Loop, 637141, Singapore
| | - Grzegorz Lisak
- Resource and Reclamation Centre (R3C), Nanyang Environment and Water Research Institute (NEWRI), 1 Clean Tech Loop, 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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27
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Chu L, Wang J. Pretreatment of alkali/surfactant/polymer (ASP)-flooding produced wastewater by electron beam radiation to improve oil-water separation. Chemosphere 2024; 351:141252. [PMID: 38244868 DOI: 10.1016/j.chemosphere.2024.141252] [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: 12/28/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/22/2024]
Abstract
The management of wastewater produced from alkali/surfactant/polymer (ASP) flooding, known for its considerable volume and high emulsion stability, poses a challenge in oilfields globally. This study has demonstrated that ionizing irradiation is a promising pretreatment method for ASP wastewater to improve oil-water separation. After a settling time of 1 h, approximately 69.5% of oil remained in the raw ASP wastewater, while only 20-29% of the oil persisted in the liquid phase following radiation at absorbed doses ranging from 0.1 to 5.0 kGy. A noticeable increase in the size of oil droplets and reduction in turbidity was observed after irradiation. Further analysis revealed that the combination of surfactant, sodium dodecyl sulfate (SDS) and alkali exhibits a synergistic impact, leading to a substantial reduction in interface tension of ASP wastewater. Notably, ionizing irradiation induces several key changes that are crucial for efficient demulsification. The transformation of the wastewater's rheological behavior from pseudoplastics to a Newtonian fluid accompanied by a reduction in viscosity, the increased interfacial tension at both liquid-air and liquid-oil interfaces, along with the degradation of organic components such as partly hydrolyzed polyacrylamide (HPAM) and SDS, all contribute to the coalescence and floatation of oil droplets.
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Affiliation(s)
- Libing Chu
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China
| | - Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China.
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28
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Guin S, Halder SC, Manna S, Jana AD. Quantifying plasmonic characteristics of pure and alkali doped aluminium clusters. J Mol Graph Model 2024; 127:108690. [PMID: 38056171 DOI: 10.1016/j.jmgm.2023.108690] [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: 06/21/2023] [Revised: 11/15/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023]
Abstract
Study of plasmonic response of molecules and metal nanoclusters have drawn a considerable attention during recent times due to their various practical applications. In this study, the optical properties and the plasmonic response of our recently reported Al13+ cluster [Guin et al. Journal of Molecular Graphics and Modelling, 2020, 97, 107544] and its alkali doped counterparts [Guin et al. Journal of Molecular Modeling, 2021, 27, 235] have been investigated based on Transition dipole moment (TDM), Natural Transition Orbital (NTO) and transition inverse participation ratio (TIPR) indices. Recently these indices have been utilized by various scientists to characterize plasmonic transitions of molecular systems and metal nanoclusters. In TDM analysis, the magnitude of all the contributing TDMs associated with the molecular orbital transitions have been estimated along with the angles the individual dipoles make with the resultant dipole moment vector. A transition having at least two dominating TDM contributions along with phase matching indicate a collective or plasmonic transition. The collectiveness of orbital transitions is also corroborated through NTO and TIPR analysis. The effect of solvent medium on the optical properties and plasmonic transitions have also been studied using time dependent density functional theory in the conductor like polarizable continuum model (TDDFT-CPCM). The solvent has a strong impact on the optical properties as well as the plasmonic response of the clusters. The dielectric environment of the solvent red shifts and broadens the spectra with respect to that in the gas phase. Plasmon like excitations have been found for Li doped Al13+ cluster without solvent and Na doped Al13+ cluster in ethanol and THF.
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Affiliation(s)
- Surajit Guin
- Department of Physics, Behala College, Parnasree, Kolkata, 700060, West Bengal, India
| | - Sasthi Charan Halder
- Department of Physics, Behala College, Parnasree, Kolkata, 700060, West Bengal, India
| | - Shovan Manna
- Department of Physics, Behala College, Parnasree, Kolkata, 700060, West Bengal, India
| | - Atish Dipankar Jana
- Department of Physics, Behala College, Parnasree, Kolkata, 700060, West Bengal, India; Institute of Astronomy Space and Earth Sciences, P-177, CIT Road, Scheme 7m, Ultadanga station, Kolkata, 700054, India.
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Tian J, Sun W, Han H, Wang Y, Peng J, Zhang X. Deep resource utilization of hazardous arsenic-alkali slag: Thermodynamic analysis, mechanism investigation and process optimization. J Environ Manage 2024; 355:120440. [PMID: 38437740 DOI: 10.1016/j.jenvman.2024.120440] [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: 11/23/2023] [Revised: 01/27/2024] [Accepted: 02/20/2024] [Indexed: 03/06/2024]
Abstract
The best solution to address environmental pollution caused by arsenic-containing hazardous waste is to prepare high-purity elemental arsenic from such waste. The key to this approach lies in the efficient separation of arsenic from various impurities. This paper presents a viable solution for producing high-purity elemental arsenic from arsenic-alkali slag, and the keylies in utilizing the selective precipitation of magnesium ammonium arsenate (MgNH4AsO4) to achieve efficient separation of arsenic from alkali, antimony, and other impurities. Thermodynamic analysis and hydrometallurgical condition experiments indicate that in complex alkaline arsenic-containing solutions, over 90% of arsenic components can selectively precipitate in the form of MgNH4AsO4. The content of arsenic in the resulting precipitate reaches approximately 30%, while the content of antimony is below 0.1%. This achieves efficient enrichment of arsenic and preliminary separation of impurities in complex arsenic-alkali slag. Thermodynamic analysis and pyrometallurgical condition experiments demonstrate that the precipitate of MgNH4AsO4 can be reduced to elemental arsenic with an arsenic content reaching 99.85%, and an antimony content as low as 0.05%. This achieves a profound separation of arsenic from impurities. Based on the research presented in this paper, a production line was established that enables the deep resource utilization of arsenic-alkali slag.
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Affiliation(s)
- Jia Tian
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China
| | - Wei Sun
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China
| | - Haisheng Han
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China
| | - Yufeng Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China
| | - Jun Peng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Lengshuijiang Antimony Capital Environmental Protection Co., Ltd., Lengshuijiang 417500, China.
| | - Xingfei Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China.
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Wang M, Long J, Zhao J, Li Z. Effect of alkali treatment on enzymatic hydrolysis of p-toluenesulfonic acid pretreated bamboo substrates. Bioresour Technol 2024; 396:130454. [PMID: 38360218 DOI: 10.1016/j.biortech.2024.130454] [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: 01/11/2024] [Revised: 02/05/2024] [Accepted: 02/11/2024] [Indexed: 02/17/2024]
Abstract
The comprehensive separation and utilization of whole components of lignocellulosic materials has received extensive attention in present research. This study focused on the efficacy of alkali treatment for enzymatic saccharification of cellulose based on p-toluenesulfonic acid (p-TsOH) pretreated bamboo substrate. The results showed that the cellulose to glucose conversion yield was 94.69 % under optimized conditions of 0.4 g NaOH/g, 160 °C and 4 h (soaked), which after only 6 h enzymatic hydrolysis time. Alkali lignin recovery was 88.51 %, with potential for conversion to lignin derivatives. The yield of hemicellulose in the pretreated filtrate was 51.85 % after the 4th cycling reuse of p-TsOH. This work has borrowed the advantages of p-TsOH pretreatment of depolymerized hemicellulose from bamboo, combined with a low-priced weak alkali secondary treatment method, which can be effectively applied to the co-production of lignin, xylooligosaccharide, xylose and glucose, and the whole process is green and economically sustainable.
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Affiliation(s)
- Meixin Wang
- International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China
| | - Juan Long
- International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China
| | - Jiayue Zhao
- International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China
| | - Zhiqiang Li
- International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China.
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Yaneva Z, Ivanova D, Toneva M. Green Synthesis, Characterization, Encapsulation, and Measurement of the Release Potential of Novel Alkali Lignin Micro-/Submicron Particles. J Vis Exp 2024. [PMID: 38497633 DOI: 10.3791/66216] [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: 03/19/2024] Open
Abstract
The applicability of biopolymer micro-/nano- technology in human, veterinary medicine, pharmaceutical, and food technology is rapidly growing due to the great potential of biopolymer-based particles as effective carrier systems. The use of lignin as a basic heteropolymer biomatrix for the design of innovative micro-/submicron formulations allows the achievement of increased biocompatibility and offers various active functional groups presenting opportunities for customization of the physicochemical properties and bioactivities of the formulations for diverse applications. The aim of the present study was to develop a simple and ecofriendly methodology for the synthesis of lignin particles with micro- and submicron size; to evaluate their physicochemical, spectral, and structural characteristics; and to examine their capacity for encapsulation of biologically active molecules and potential for in vitro release of bioflavonoids in simulated gastrointestinal media. The presented methodologies apply cheap and green solvents; easy, straightforward, quick, and sensitive processes requiring little equipment, non-toxic substances, and simple methods for their characterization, the determination of encapsulation capacity towards the poorly water-soluble bioactive compounds morin and quercetin, and the in vitro release potential of the lignin matrices.
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Affiliation(s)
- Zvezdelina Yaneva
- Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Faculty of Veterinary Medicine, Trakia University;
| | - Donika Ivanova
- Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Faculty of Veterinary Medicine, Trakia University
| | - Monika Toneva
- Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Faculty of Veterinary Medicine, Trakia University
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Xu B, Chen Z, Hänsch TW, Picqué N. Near-ultraviolet photon-counting dual-comb spectroscopy. Nature 2024; 627:289-294. [PMID: 38448594 PMCID: PMC10937374 DOI: 10.1038/s41586-024-07094-9] [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: 07/30/2023] [Accepted: 01/19/2024] [Indexed: 03/08/2024]
Abstract
Ultraviolet spectroscopy provides unique insights into the structure of matter with applications ranging from fundamental tests to photochemistry in the Earth's atmosphere and astronomical observations from space telescopes1-8. At longer wavelengths, dual-comb spectroscopy, using two interfering laser frequency combs, has become a powerful technique capable of simultaneously providing a broad spectral range and very high resolution9. Here we demonstrate a photon-counting approach that can extend the unique advantages of this method into ultraviolet regions where nonlinear frequency conversion tends to be very inefficient. Our spectrometer, based on two frequency combs with slightly different repetition frequencies, provides a wide-span, high-resolution frequency calibration within the accuracy of an atomic clock, and overall consistency of the spectra. We demonstrate a signal-to-noise ratio at the quantum limit and an optimal use of the measurement time, provided by the multiplexed recording of all spectral data on a single photon-counter10. Our initial experiments are performed in the near-ultraviolet and in the visible spectral ranges with alkali-atom vapour, with a power per comb line as low as a femtowatt. This crucial step towards precision broadband spectroscopy at short wavelengths paves the way for extreme-ultraviolet dual-comb spectroscopy, and, more generally, opens up a new realm of applications for photon-level diagnostics, as encountered, for example, when driving single atoms or molecules.
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Affiliation(s)
- Bingxin Xu
- Max-Planck Institute of Quantum Optics, Garching, Germany
| | - Zaijun Chen
- Max-Planck Institute of Quantum Optics, Garching, Germany
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, USA
| | - Theodor W Hänsch
- Max-Planck Institute of Quantum Optics, Garching, Germany
- Faculty of Physics, Ludwig-Maximilian University of Munich, Munich, Germany
| | - Nathalie Picqué
- Max-Planck Institute of Quantum Optics, Garching, Germany.
- Max-Born Institute for Nonlinear Optics and Short-Pulse Spectroscopy, Berlin, Germany.
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Ceñera Fernández J, González Esteban L, Moure García C, Cernuda Martínez JA. Conocimientos sobre COVID-19 en población general adulta tras dos años de pandemia. Glob Health Promot 2024; 31:111-119. [PMID: 37933817 DOI: 10.1177/17579759231204352] [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: 11/08/2023]
Abstract
OBJETIVO identificar el nivel de conocimientos sobre la COVID-19 que tiene la población adulta residente en Gijón (España) después de dos años de pandemia. MÉTODOS se realizó un estudio descriptivo transversal entre marzo del 2021 y marzo del 2022. Los datos se obtuvieron mediante un cuestionario telefónico sobre una muestra estratificada de tres zonas básicas de salud de Gijón, España (Calzada, Zarracina y Parque-Somió). El tamaño muestral se compuso de 305 personas. Se empleó el análisis ji-cuadrado para estudiar la relación entre variables categóricas y ANOVA para comparar las medias de la puntuación total por zona básica. Se realizaron regresiones logísticas para calcular las odds ratio entre la variable dependiente (poseer conocimientos avanzados) y las independientes (variables sociodemográficas). Se construyó un modelo predictivo entre la existencia o no de conocimiento avanzado y las variables independientes mediante regresión logística. RESULTADOS se encontraron diferencias en la puntuación media del nivel de conocimientos entre Parque-Somió y Calzada (p = 0.000) y Parque-Somió y Zarracina (p = 0.045), obteniendo mayor puntuación media la de Parque-Somió. Se observó una asociación entre el nivel de conocimientos y las variables medio de información utilizado (p = 0.018), edad (p = 0.036), zona básica de salud (p = 0.000), nivel educativo (p = 0.000) e historia previa de contacto estrecho (p = 0.004). CONCLUSIONES el nivel de conocimientos avanzado se presenta sobre todo en las zonas básicas de salud con mayor nivel socioeconómico, población con nivel educativo alto, de 25 a 45 años, que se ha informado por su entorno y con historia previa de seguimiento por ser contacto estrecho.
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Affiliation(s)
| | | | - Camino Moure García
- Servicio de Salud del Principado de Asturias (SESPA). Oviedo, Asturias, España
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Cao T, Du Q, Ge R, Li R. Genome-wide identification and characterization of FAD family genes in barley. PeerJ 2024; 12:e16812. [PMID: 38436034 PMCID: PMC10909363 DOI: 10.7717/peerj.16812] [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: 09/01/2023] [Accepted: 12/29/2023] [Indexed: 03/05/2024] Open
Abstract
Fatty acid desaturases (FADs) play pivotal roles in determining plant stress tolerance. Barley is the most salt-tolerant cereal crop. In this study, we performed genome-wide identification and characterization analysis of the FAD gene family in barley (Hordeum vulgare). A total of 24 HvFADs were identified and divided into four subfamilies based on their amino acid sequence similarity. HvFADs unevenly distributed on six of seven barley chromosomes, and three clusters of HvFADs mainly occurred on the chromosome 2, 3 and 6. Segmental duplication events were found to be a main cause for the HvFAD gene family expansion. The same HvFAD subfamily showed the relatively consistent exon-intron composition and conserved motifs of HvFADs. Cis-element analysis in HvFAD promoters indicated that the expression of HvFADs may be subject to complex regulation, especially stress-responsive elements that may involve in saline-alkaline stress response. Combined transcriptomic data with quantitative experiments, at least five HvFADs highly expressed in roots under salt or alkali treatment, suggesting they may participate in saline or alkaline tolerance in barley. This study provides novel and valuable insights for underlying salt/alkali-tolerant mechanisms in barley.
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Affiliation(s)
- TingTing Cao
- College of Life Science, Hebei Normal University, Hebei, China
| | - QingWei Du
- Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - RongChao Ge
- College of Life Science, Hebei Normal University, Hebei, China
| | - RuiFen Li
- Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Zhao S, Wang D, Li Y, Wang W, Wang J, Chang H, Yang J. The effect of modifier and a water-soluble fertilizer on two forages grown in saline-alkaline soil. PLoS One 2024; 19:e0299113. [PMID: 38422029 PMCID: PMC10903894 DOI: 10.1371/journal.pone.0299113] [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: 09/01/2023] [Accepted: 02/06/2024] [Indexed: 03/02/2024] Open
Abstract
Saline-alkali soil significantly impairs crop growth. This research employs the impacts of the modifier and water-soluble fertilizer, as well as their interaction, on the root systems of alfalfa and leymus chinensis in saline-alkali soil. The results exhibit that the hydrochar source modifier effectively enhances the root growth of both forage species. There are certain improvements in the root growth indicators of both crops at a dosage of 20 g/kg. Root enzyme activity and rhizosphere soil enzyme activity are enhanced in alfalfa, showing significant improvements in the first planting compared to the second planting. The application of water-soluble fertilizers also promotes root growth and root dehydrogenase activity. The root dehydrogenase activity of alfalfa and leymus chinensis are enhanced 62.18% and 10.15% in first planting than that of blank, respectively. Additionally, the two-factor variance analysis revealed a correlation between rhizosphere soil enzyme activity and changes in root traits. Higher rhizosphere soil enzyme activity is observed in conjunction with better root growth. The combined application of a modifier and water-soluble fertilizer has demonstrated a significant interaction effect on various aspects of the first planting of alfalfa and leymus chinensis. Moreover, the combined application of the modifier and water-soluble fertilizer has yielded superior results when compared to the individual application of either the modifier or the water-soluble fertilizer alone. This combined approach has proven effective in improving saline-alkali soil conditions and promoting crop growth in such challenging environments.
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Affiliation(s)
- Shengchen Zhao
- College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province, China
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Dapeng Wang
- College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province, China
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Yunhui Li
- College of Engineering, Jilin Normal University, Siping, Jilin Province, China
| | - Wei Wang
- College of Engineering, Jilin Normal University, Siping, Jilin Province, China
| | - Jihong Wang
- College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province, China
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Haibo Chang
- College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province, China
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Jingmin Yang
- College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province, China
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
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Zhu F, Cheng H, Guo J, Bai S, Liu Z, Huang C, Shen J, Wang K, Yang C, Guan Q. Vegetative cell wall protein OsGP1 regulates cell wall mediated soda saline-alkali stress in rice. PeerJ 2024; 12:e16790. [PMID: 38436004 PMCID: PMC10908258 DOI: 10.7717/peerj.16790] [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: 04/20/2023] [Accepted: 12/21/2023] [Indexed: 03/05/2024] Open
Abstract
Plant growth and development are inhibited by the high levels of ions and pH due to soda saline-alkali soil, and the cell wall serves as a crucial barrier against external stresses in plant cells. Proteins in the cell wall play important roles in plant cell growth, morphogenesis, pathogen infection and environmental response. In the current study, the full-length coding sequence of the vegetative cell wall protein gene OsGP1 was characterized from Lj11 (Oryza sativa longjing11), it contained 660 bp nucleotides encoding 219 amino acids. Protein-protein interaction network analysis revealed possible interaction between CESA1, TUBB8, and OsJ_01535 proteins, which are related to plant growth and cell wall synthesis. OsGP1 was found to be localized in the cell membrane and cell wall. Furthermore, overexpression of OsGP1 leads to increase in plant height and fresh weight, showing enhanced resistance to saline-alkali stress. The ROS (reactive oxygen species) scavengers were regulated by OsGP1 protein, peroxidase and superoxide dismutase activities were significantly higher, while malondialdehyde was lower in the overexpression line under stress. These results suggest that OsGP1 improves saline-alkali stress tolerance of rice possibly through cell wall-mediated intracellular environmental homeostasis.
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Affiliation(s)
- Fengjin Zhu
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Huihui Cheng
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Jianan Guo
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Shuomeng Bai
- Aulin College, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Ziang Liu
- College of Forestry, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Chunxi Huang
- College of Forestry, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Jiayi Shen
- College of Forestry, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Kai Wang
- College of Forestry, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Chengjun Yang
- College of Forestry, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Qingjie Guan
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang Province, China
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Zhang Y, Cai L, Chen L, Zhang H, Li G, Wang G, Cui J, Filatova I, Liu Y. Effect of micro-nano bubbles on the remediation of saline-alkali soil with microbial agent. Sci Total Environ 2024; 912:168940. [PMID: 38042196 DOI: 10.1016/j.scitotenv.2023.168940] [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: 09/20/2023] [Revised: 11/25/2023] [Accepted: 11/25/2023] [Indexed: 12/04/2023]
Abstract
The widespread distribution of saline-alkali soil around the world affects the health of ecological systems and the development of the national economy by limiting the growth of plants. However, the commonly used remediation technologies have the drawbacks of low efficiency, high cost, and secondary pollution. This study investigated the feasibility and efficacy of novel combined micro-nanobubbles (MNBs) and microbial agent (MA) technology for the remediation of saline-alkali soil. The results demonstrated that the combined MA-MNBs method greatly renovated the properties of saline-alkali soil compared with the technologies of single utilization of MA or MNBs process in the laboratory. The method resulted in a reduction of soil electrical conductivity and pH levels, an improvement in soil fertility, and the formation of soil aggregates. Moreover, the method significantly impacted the growth of plants, particularly in plant length, dry weight, and rhizome elongation. Further high-throughput sequencing and gene expression analysis revealed that the MA-MNBs method enhanced the abundance of soil microbial community compared with single MA and MNBs treatment. Gene enrichment analysis revealed that the MA-MNBs method could compensate for the shortcomings of single MA treatment and enhance the expression of energy metabolism and salt stress-related genes attributed to MNBs treatment, thereby significantly improving the growth and development of plants. Consistently, 6115 kg/ha of rice was yielded in the field for the saline-alkali soils using this MA-MNBs method, with zero crops before remediation. This study provided a novel, efficient, and green strategy for the remediation of saline-alkali soil without adding any chemicals.
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Affiliation(s)
- Yinyin Zhang
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Li Cai
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Luhai Chen
- Nanobubble Technology (Shanghai) Co., Ltd, Shanghai 201709, China
| | - Han Zhang
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Guoqing Li
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Guoxiang Wang
- Nanobubble Technology (Shanghai) Co., Ltd, Shanghai 201709, China
| | - Jie Cui
- Beijing Enterprises Water Group Ltd, Beijing 100102, China
| | - Irina Filatova
- Department of Physics, Mathematics and Informatics, NAS of Belarus Nezavisimosti Ave, Minsk 220072, Belarus
| | - Yanan Liu
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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Li G, Shan Y, Nie W, Sun Y, Su L, Mu W, Qu Z, Yang T, Wang Q. Application of carboxymethyl cellulose sodium (CMCNa) in maize-wheat cropping system (MWCS) in coastal saline-alkali soil. Sci Total Environ 2024; 912:169214. [PMID: 38092203 DOI: 10.1016/j.scitotenv.2023.169214] [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: 10/20/2023] [Revised: 12/06/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
Sodium carboxymethyl cellulose (CMCNa) application has been a promising approach to improve soil quality. The purpose of this study was to explore the effects of CMC-Na on soil infiltration, evaporation, water-salt distribution, crop growth, water use efficiency and net profit (Net) in a coastal saline-alkali soil maize-wheat cropping system (MWCS). Five CMC-Na application amounts (0, 0.1, 0.2, 0.4 and 0.6 g kg-1) were designed for the soil column experiment indoor, and five CMC-Na application amounts were used in 2019-2020 field experiment (CK: 0, C10: 10 kg ha-1, C20: 10 kg ha-1, C30: 10 kg ha-1 and C50: 10 kg ha-1), No treatment will be applied in 2021. The results showed that (1) CMC-Na treatment reduced soil cumulative infiltration, infiltration rate, daily evaporation, and cumulative evaporation. (2) After the application of CMCNa, the average soil water storage (SWS) in the 0-60 cm soil layer increased, and soil salinity (SSC) decreased in most treatments. (3) In the 2019-2020, the maize aboveground biomass (B), yield (Y) and water use efficiency (WUE) were the highest under the C20 and C30 treatments, which were 15.24 and 15.32 t ha-1, 5.67 and 5.49 t ha-1 and 1.74 and 1.52 kg ha-1 mm-1, respectively, and the wheat under C30 treatment is the highest, which were 10.98 t ha-1, 5.27 t ha-1 and 1.78 kg ha-1 mm-1. (4) A dose of 25.5 kg ha-1 and 38.9 kg ha-1 was recommended as the most optimal CMC-Na application for maize and wheat in coastal saline alkali soil, respectively.
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Affiliation(s)
- Ge Li
- State Key Lab. of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China
| | - Yuyang Shan
- State Key Lab. of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China.
| | - Weibo Nie
- State Key Lab. of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China.
| | - Yan Sun
- State Key Lab. of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China
| | - Lijun Su
- State Key Lab. of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China
| | - Weiyi Mu
- State Key Lab. of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China
| | - Zhi Qu
- State Key Lab. of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China
| | - Ting Yang
- Guangzhou Institute of Geography, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Quanjiu Wang
- State Key Lab. of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China
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Wang X, Riaz M, Babar S, Eldesouki Z, Liu B, Xia H, Li Y, Wang J, Xia X, Jiang C. Alterations in the composition and metabolite profiles of the saline-alkali soil microbial community through biochar application. J Environ Manage 2024; 352:120033. [PMID: 38218168 DOI: 10.1016/j.jenvman.2024.120033] [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: 08/15/2023] [Revised: 11/30/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024]
Abstract
Saline-alkali soil poses significant chanllenges to sustainable development of agriculture. Although biochar is commonly used as a soil organic amendment, its microbial remediation mechanism on saline-alkali soil requires further confirmation. To address this, we conducted a pot experiment using cotton seedlings to explore the potential remediation mechanism of rice straw biochar (BC) at three different levels on saline-alkaline soil. The results showed that adding of 2% biochar greatly improved the quality of saline-alkaline soil by reducing pH levels, electrical conductivity (EC), and water-soluble ions. Moreover, biochar increased the soil organic matter (SOM), nutrient availability and extracellular enzyme activity. Interestingly, it also reduced soil salinity and salt content in various cotton plant tissues. Additionally, biochar had a notable impact on the composition of the microbial community, causing changes in soil metabolic pathways. Notably, the addition of biochar promoted the growth and metabolism of dominant salt-tolerant bacteria, such as Proteobacteria, Bacteroidota, Acidobacteriota, and Actinobacteriota. By enhancing the positive correlation between microorganisms and metabolites, biochar alleviated the inhibitory effect of salt ions on microorganisms. In conclusion, the incorporation of biochar significantly improves the soil microenvironment, reduces soil salinity, and shows promise in ameliorating saline-alkaline soil conditions.
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Affiliation(s)
- Xiangling Wang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China; The Key Laboratory of Oasis Ecoagriculture, Xinjiang Production and Construction Corps, Shihezi University, Shihezi, Xinjiang, 832000, PR China.
| | - Muhammad Riaz
- College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, PR China.
| | - Saba Babar
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China.
| | - Zeinab Eldesouki
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China; Department of Soil Sciences, Faculty of Agriculture, Ain Shams University, Cairo, 11241, Egypt.
| | - Bo Liu
- Key Laboratory of Fertilization from Agricultural Wastes, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, 430064, PR China.
| | - Hao Xia
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China.
| | - Yuxuan Li
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China.
| | - Jiyuan Wang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China.
| | - Xiaoyang Xia
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China.
| | - Cuncang Jiang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China; The Key Laboratory of Oasis Ecoagriculture, Xinjiang Production and Construction Corps, Shihezi University, Shihezi, Xinjiang, 832000, PR China.
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Suresh AR, Alphonse Mani AS, Muthuvelu KS. Investigation of pre-treatment techniques on spent substrate of Pleurotus ostreatus for enhanced biobutanol production using Clostridium acetobutylicum MTCC 11274. Bioresour Technol 2024; 394:130228. [PMID: 38128888 DOI: 10.1016/j.biortech.2023.130228] [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: 10/10/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Addressing global energy demand, researchers sought eco-friendly biobutanol production from lignocellulosic waste biomass. In the present research work, five different pre-treatment methods viz., Microwave, Ultrasound, Alkali, Acid, and Hybrid, were investigated to explore its biobutanol production potential by utilizing Pleurotus ostreatus spent as substrate. The compositional and physico-chemical changes of the pre-treated Spent Mushroom Substrate (SMS) were assessed using SEM, FTIR, and XRD. Hybrid pre-treatment (Microwave, Alkali, Ultrasound) showed higher delignification when compared to conventional pre-treatment method. Hybrid pre-treated SMS resulted in higher total reducing sugars (521.53 ± 1.84 mg/g) than indigenous SMS (267.89 ± 1.53 mg/g). Fermentation of hybrid pre-treated SMS with Clostridium acetobutylicum MTCC 11274 produced the highest biobutanol concentration (9.84 ± 0.03 g/L) and yielded 0.38 ± 0.02 g/g of biobutanol. This study revealed that hybrid pre-treatment could be a promising solution for enhanced biobutanol production using SMS biomass.
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Affiliation(s)
- Ashwin Raj Suresh
- Bioprocess and Bioproducts Special Lab, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Erode 638 401, Tamilnadu, India
| | - Anitha Shalini Alphonse Mani
- Bioprocess and Bioproducts Special Lab, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Erode 638 401, Tamilnadu, India
| | - Kirupa Sankar Muthuvelu
- Bioprocess and Bioproducts Special Lab, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Erode 638 401, Tamilnadu, India.
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Tonini de Araújo M, Ferrazzo ST, Consoli NC, da Rocha CG. Environmental, economic, and social impacts of sugar cane bagasse and eggshell wastes for soil stabilization. Environ Sci Pollut Res Int 2024; 31:15973-15985. [PMID: 38308782 DOI: 10.1007/s11356-024-32299-w] [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: 10/10/2023] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
Sustainability is a core topic for all sectors including geotechnical engineering (e.g., design of foundations, earthworks structures, and pavements for major infrastructure and building projects). Despite being comprised of environmental, economic, and social pillars, most sustainability studies in this area have focused on the first. Furthermore, social impacts and the three pillars integration are little explored. As a result, there is a lack of systemic and holistic assessments of innovative geotechnical alternatives. This research advances in this area by performing a complete sustainability assessment and integration of the environmental, economic, and social pillars of two expansive soil stabilization alternatives: (i) sugar cane bagasse ash combined with hydrated eggshell lime alkali-activated by sodium hydroxide (NaOH) and (ii) Portland cement. Individual analyses were carried out to determine the environmental, economic, and social impacts, and the single sustainability index. Alkali-activated binder dosages showed higher impacts in 4 out of 10 environmental categories. For both binders, high-density/low-binder dosages contributed to environmental and economic sustainability as they require lower quantities of raw materials and diesel for materials transportation. The total costs of alkali-activated binder dosages ($189.79 and $154.45) were higher than that of Portland cement ($72.49 and $54.04), mainly due to the high cost of NaOH acquisition. However, the alkali-activated binder dosages implied lower carbon dioxide (CO2) emissions and thus lower social cost of CO2. The alternative binder presented a higher positive social impact. The alkali-activated high-density/low binder dosage is the most sustainable soil stabilization strategy.
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Affiliation(s)
- Mariana Tonini de Araújo
- Graduate Program in Civil Engineering, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, 90035-190, Brazil
| | - Suéllen Tonatto Ferrazzo
- 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.
| | - Cecília Gravina da Rocha
- School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Sydney, NSW, 2007, Australia
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Liu XM, Huan WW, Kang Y, Guo JZ, Wang YX, Li FH, Li B. Effects of cation types in persulfate on physicochemical and adsorptive properties of biochar prepared from persulfate-pretreated bamboo. Bioresour Technol 2024; 393:130140. [PMID: 38043687 DOI: 10.1016/j.biortech.2023.130140] [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: 10/07/2023] [Revised: 11/14/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
The adsorption behaviors of biochar are largely impacted by biomassfeedstock. In this study, two biochars were prepared from torrefaction of ammonium persulfate- and potassium persulfate-pretreated bamboo and then activated by cold alkali, which are named as ASBC and KSBC, respectively. The two biochars were characterized by different instruments, and their adsorption properties over cationic methylene blue (MB) were compared. The type of persulfates little affected the specific surface areas, but significantly impacted O (29.54 % vs. 35.113 %) and N (12.13 % vs. 3.74 %) contents, functional groups, and zeta potentials of biochars. MB adsorption onto ASBC/KSBC is a single-layer chemical endothermic process and ASBC/KSBC exhibit high adsorption capacity over MB (475/881 mg·g-1) at 303 K. Obviously, the sorption capacity of MB onto KSBC much surpasses that of MB onto ASBC. These results indicate biomass pre-treatment is a cheap and convenient method to prepare biochars with unique physicochemical and adsorptive properties.
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Affiliation(s)
- Xiao-Meng Liu
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, PR China
| | - Wei-Wei Huan
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, PR China
| | - Ying Kang
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, PR China
| | - Jian-Zhong Guo
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, PR China
| | - Yu-Xuan Wang
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, PR China
| | - Feng-Hua Li
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, PR China
| | - Bing Li
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, PR China.
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Yang W, Zhang R, Yang Y, Ji W, Zhang X, Zhang D, Wang L, Qu Z. Evaluation of net carbon sequestration and ecological benefits from single biochar-incorporated sorghum farmland systems in saline-alkali areas of Inner Mongolia, China. J Environ Manage 2024; 351:119979. [PMID: 38181682 DOI: 10.1016/j.jenvman.2023.119979] [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: 10/17/2023] [Revised: 11/29/2023] [Accepted: 12/26/2023] [Indexed: 01/07/2024]
Abstract
Biochar is widely recognized as a soil amendment to reduce greenhouse gas emissions and enhance soil carbon storage in agroecosystems; however, the systematic focus on carbon balance and ecological benefits in cropping systems remains unclear in saline-alkali areas under water-saving irrigation. Here, a 2-yr field experiment with carbon footprint method was conducted to determine soil carbon budgets, biochar carbon efficiency performance, and the economic and ecological benefits of mulched drip-irrigated sorghum production, in an arid salinized region of Inner Mongolia, China. Corn straw-derived biochar dosages of 0 (CK), 15 (B15), 30 (B30), and 45 (B45) t hm-2 were just applied into the soil in the first crop growing season. A single application of biochar to soil significantly reduced CO2 emissions for the current and subsequent crop-growing seasons, with 13.1%, 16.7%, and 12.5% reductions for B15, B30, and B45, respectively. Compared with the non-biochar control plots, B15, B30, and B45 also increased NPP by 36.7%, 38.4%, and 27.1%, respectively. The actual effects on improving net carbon sequestration for B15, B30, and B45 in the first year were higher than those in the second year, with mean increases of 1.27, 1.47, and 1.36 times, respectively; however, the efficiencies of biochar for fixing carbon per biochar dosage input for B15 were 72.8% and 64.1% higher than those of B30 and B45, respectively. Net profits were significantly improved by 57.2-87.1% by biochar treatments. The environmental benefits of biochar carbon trading revenues for B15, B30, and B45 increased by 105.9%, 162.1%, and 109.6%, respectively. The minimum observation for carbon productivity and the maximum measurements for both the economic and ecological benefits were B15. The B15 also significantly increased sorghum yield and grain number. Results demonstrate that biochar application in the current growing season helps reduce soil carbon emissions, increases net carbon sequestration for current and subsequent sorghum agroecosystems, and enhances net profit and ecological benefits. The optimal positive synergistic effect was observed at a biochar application rate of 15 t hm-2 for reducing soil carbon emissions, increasing crop production, and improving the ecological environment.
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Affiliation(s)
- Wei Yang
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Ruxin Zhang
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Yixuan Yang
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Wentao Ji
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Xiaomin Zhang
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Dongliang Zhang
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Liping Wang
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Zhongyi Qu
- College of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China.
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Rasmus J, Adesanya E, Silva Santos H, Kilpimaa K, Illikainen M. Effects of thermal treatment on the characteristics of pulp mill residue. J Environ Manage 2024; 351:119793. [PMID: 38086117 DOI: 10.1016/j.jenvman.2023.119793] [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: 08/15/2023] [Revised: 11/24/2023] [Accepted: 12/03/2023] [Indexed: 01/14/2024]
Abstract
In this study, the effects of thermal treatment at moderately low temperatures (Tmax: 525 °C) on the composition and properties of two distinct green liquor dregs (GLD) samples from two different pulp mills were investigated. This in-depth characterization was conducted with the aim of enabling the use of GLD as raw materials in cementitious applications (e.g., alkali-activated binders). The elemental composition of the GLD samples primarily comprised Ca, Mg, S, Na, and Mn. Analysis using x-ray diffractometry, an electron probe microanalyzer, and scanning electron microscopy revealed that calcite was the main crystalline phase, whereas layered double hydroxides with varying compositions constituted the primary amorphous phase. Characterization through Fourier-transform infrared spectroscopy and thermogravimetric analysis coupled with mass spectrometer analysis, indicated the loss of water and carbon during thermal treatment. Total organic carbon analysis showed that most of the removed carbon was organic, despite some remaining after thermal treatment at 525 °C. A leaching test was conducted to quantify the soluble Ca, Mg, Na, and K content, as well as pH variations. Overall, the findings suggest that thermal treatment enhances the potential of GLD samples for use in binder materials in the construction sector.
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Affiliation(s)
- Juho Rasmus
- Fibre and Particle Engineering Research Unit, University of Oulu, Erkki Koiso-Kanttilan Katu 5, 90570, Oulu, Finland
| | - Elijah Adesanya
- Fibre and Particle Engineering Research Unit, University of Oulu, Erkki Koiso-Kanttilan Katu 5, 90570, Oulu, Finland
| | - Hellen Silva Santos
- Fibre and Particle Engineering Research Unit, University of Oulu, Erkki Koiso-Kanttilan Katu 5, 90570, Oulu, Finland
| | - Katja Kilpimaa
- Fibre and Particle Engineering Research Unit, University of Oulu, Erkki Koiso-Kanttilan Katu 5, 90570, Oulu, Finland.
| | - Mirja Illikainen
- Fibre and Particle Engineering Research Unit, University of Oulu, Erkki Koiso-Kanttilan Katu 5, 90570, Oulu, Finland
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Ai S, Huang Z, Yu W, Huang C. Efficient dissolution of cellulose in slow-cooling alkaline systems and interacting modes between alkali and urea at the molecular level. Carbohydr Res 2024; 536:109054. [PMID: 38350405 DOI: 10.1016/j.carres.2024.109054] [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: 01/02/2024] [Revised: 02/02/2024] [Accepted: 02/08/2024] [Indexed: 02/15/2024]
Abstract
The dissolution of microcrystalline cellulose (MCC) in a urea-NaOH system is beneficial for its mechanical processing. The apparent MCC solubility was greatly improved to 14 wt% under a slow-cooling condition with a cooling rate of -0.3 °C/min. The cooling curve or thermal history played a crucial role in the dissolution process. An exotherm (-54.7 ± 3 J/g MCC) was detected by DSC only under the slow-cooling condition, and the cryogenic dissolution of MCC was attributed to the exothermic interaction between MCC and solvent. More importantly, the low cooling rate promoted the dissolution of MCC by providing enough time for the diffusion of OH- and urea into MCC granules at higher temperatures. The Raman spectral data showed that the intramolecularly and intermolecularly hydrogen bonds in cellulose were cleaved by NaOH and urea, respectively. XPS and solid-state 13C NMR results showed that hydrogen bonds were generated after dissolution, and a dual-hydrogen-bond binding mode between urea and cellulose was confirmed by DFT calculations. Both the decrease of enthalpy and increase of entropy dominated the spontaneity of MCC dissolution, and that is the reason for the indispensability of cryogenic environment. The high apparent solubility of MCC in the slow-cooling process and the dissolution mechanism are beneficial for the studies on cellulose modification and mechanical processing.
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Affiliation(s)
- Shuo Ai
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China.
| | - Zhenhua Huang
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Wanguo Yu
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China.
| | - Chengdu Huang
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
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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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48
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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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49
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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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50
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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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