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Huang LJ, Lan JX, Wang JH, Huang H, Lu K, Zhou ZN, Xin SY, Zhang ZY, Wang JY, Dai P, Chen XM, Hou W. Bioactivity and mechanism of action of sanguinarine and its derivatives in the past 10 years. Biomed Pharmacother 2024; 173:116406. [PMID: 38460366 DOI: 10.1016/j.biopha.2024.116406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/27/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024] Open
Abstract
Sanguinarine is a quaternary ammonium benzophenanthine alkaloid found in traditional herbs such as Chelidonium, Corydalis, Sanguinarum, and Borovula. It has been proven to possess broad-spectrum biological activities, such as antitumor, anti-inflammatory, antiosteoporosis, neuroprotective, and antipathogenic microorganism activities. In this paper, recent progress on the biological activity and mechanism of action of sanguinarine and its derivatives over the past ten years is reviewed. The results showed that the biological activities of hematarginine and its derivatives are related mainly to the JAK/STAT, PI3K/Akt/mTOR, NF-κB, TGF-β, MAPK and Wnt/β-catenin signaling pathways. The limitations of using sanguinarine in clinical application are also discussed, and the research prospects of this subject are outlined. In general, sanguinarine, a natural medicine, has many pharmacological effects, but its toxicity and safety in clinical application still need to be further studied. This review provides useful information for the development of sanguinarine-based bioactive agents.
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Affiliation(s)
- Le-Jun Huang
- College of Rehabilitation, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Jin-Xia Lan
- College of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Jin-Hua Wang
- Ji'an Central People's Hospital (Shanghai East Hospital Ji'an Hospital), Ji'an, Jiangxi 343100, PR China
| | - Hao Huang
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Kuo Lu
- Henan International Joint Laboratory of Children's Infectious Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, PR China
| | - Zhi-Nuo Zhou
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Su-Ya Xin
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Zi-Yun Zhang
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Jing-Yang Wang
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Ping Dai
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China
| | - Xiao-Mei Chen
- Department of Hematology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510080, PR China
| | - Wen Hou
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, PR China.
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Ma M, Xu X, Ha Z, Su Q, Lv C, Li J, Du D, Chi R. Deep insight on mechanism and contribution of arsenic removal and heavy metals remediation by mechanical activation phosphogypsum. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122258. [PMID: 37536479 DOI: 10.1016/j.envpol.2023.122258] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/08/2023] [Accepted: 07/24/2023] [Indexed: 08/05/2023]
Abstract
Arsenic-containing wastewater and arsenic-contaminated soil can cause serious environmental pollution. In this study, phosphogypsum with partial mechanical activation of calcium oxide was used to prepare a new phosphogypsum-based passivate (Ca-mPG), and its remediation performance on arsenic-contaminated soil was evaluated in terms of both effectiveness and microbial response. The results showed that the optimum conditions for the preparation of the passivate were optimized in terms of single factor and response surface with a ball milling speed of 200 r/min, a material ratio of 6:4 and a ball milling time of 4 h. Under these conditions, the adsorption capacity was 37.75 mg/g. The leaching concentration of arsenic (As) in the contaminated soil after Ca-mPG modification decreased from 25.75 μg/L to 5.88 μg/L, which was lower than the Chinese national standard (GB/T 5085.3-2007); Ca-mPG also showed excellent passivation effect on other heavy Metals (copper, nickel, cadmium, zinc). In addition, As-resistant bacteria and passivators work together to promote the stabilization effect of contaminants during the remediation of As-contaminated soil. The mechanisms of Cu, As(III)/As(V), Zn, Cd, and Ni removal were related to ion exchange, electrostatic adsorption of substances on heavy metals, calcium binding to other substances to produce precipitation; and microbially induced stabilization of HMs, oxidized. Overall, this study demonstrates an eco-friendly "waste-soil remediation" strategy to solve problems associated with solid waste reuse and remediation of HM-contaminated soils.
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Affiliation(s)
- Mengyu Ma
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China; Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan 430074, PR China
| | - Xiangqun Xu
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Zhihao Ha
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Qingmuke Su
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Chenyang Lv
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Jia Li
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Dongyun Du
- Hubei Province Engineering Research Center for Control and Treatment of Heavy Metal Pollution, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China.
| | - Ruan Chi
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan 430074, PR China
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Li X, Zhang L, Zhong Z, Sun S, Wu J, Liu F, Cao Z, Lu H, Liao X, Zhou B, Chen J. Sanguinarine exposure induces immunotoxicity and abnormal locomotor behavior in zebrafish. FISH & SHELLFISH IMMUNOLOGY 2023; 139:108898. [PMID: 37301310 DOI: 10.1016/j.fsi.2023.108898] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/21/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
Sanguinarine (C20H14NO4+), a plant alkaloid and pesticide, works well a fungicidal and insecticidal applications. The prospect that sanguinarine may have potentially toxic effects on aquatic organisms has been brought to light by its use in agriculture. The first evaluation of the immunotoxic and behavioral effects of sanguinarine exposure on larval zebrafish was done in this work. Firstly, zebrafish embryos exposed to sanguinarine had shorter body length, larger yolk sacs, and slower heart rates. Secondly, the number of innate immune cells was significantly reduced. Thirdly, alterations in locomotor behavior were observed as exposure concentrations increased. Total distance travelled, travel time, and mean speed were all reduced. We also found significant changes in oxidative stress-related indicators and a significant increase in apoptosis in the embryos. Further studies revealed aberrant expression of some key genes in the TLR immune signaling pathway including CXCL-c1c, IL8, MYD88, and TLR4. At the same time, the expression of the pro-inflammatory cytokine IFN-γ was upregulated. To sum up, our results suggest that sanguinarine exposure may cause immunotoxicity and aberrant behavior in larval zebrafish.
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Affiliation(s)
- Xue Li
- Affiliated Hospital of Jinggangshan University, Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China; School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, China; State Key Laboratory Cultivation Base and Key Laboratory of Vision Science of Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology, Wenzhou Medical University, Wenzhou, 325003, China
| | - Li Zhang
- Affiliated Hospital of Jinggangshan University, Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Zilin Zhong
- Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Department of Pediatrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China
| | - Sujie Sun
- Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Department of Pediatrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China
| | - Jie Wu
- Affiliated Hospital of Jinggangshan University, Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Fasheng Liu
- Affiliated Hospital of Jinggangshan University, Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Zigang Cao
- Affiliated Hospital of Jinggangshan University, Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Huiqiang Lu
- Affiliated Hospital of Jinggangshan University, Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Xinjun Liao
- Affiliated Hospital of Jinggangshan University, Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China.
| | - Bing Zhou
- Affiliated Hospital of Jinggangshan University, Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China.
| | - Jianjun Chen
- Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Department of Pediatrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China.
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Shang C, Chai Y, Peng L, Shao J, Huang H, Chen A. Remediation of Cr(VI) contaminated soil by chitosan stabilized FeS composite and the changes in microorganism community. CHEMOSPHERE 2023; 327:138517. [PMID: 36972868 DOI: 10.1016/j.chemosphere.2023.138517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 06/18/2023]
Abstract
In-suit immobilization is one of the major strategies to remediate heavy metals contaminated soil with the effectiveness largely depends on the characteristics of the added chemical reagents/materials. In this study, chitosan stabilized FeS composite (CS-FeS) was prepared to evaluate the performance of remediating the high and toxic hexavalent chromium contaminated soil from the effectiveness and microbial response aspects. The characterization analysis confirmed the successful preparation of composite, and the introduction of chitosan successfully stabilized FeS to protect it from rapid oxidation as compared to bare FeS particles. With the addition dosage at 0.1%, about 85.6% and 81.3% of Cr(VI) was reduced in 3 d based on toxicity characteristic leaching procedure (TCLP) and CaCl2 extraction, and the reduction efficiency increased to 96.6% and 94.8% in 7 d, respectively. The Cr(VI) was non-detected in the TCLP leachates with increase the CS-FeS composites to 0.5%. The percentages of HOAc-extractable Cr decreased from 25.17% to 6.12% accompanied with the increase in the residual Cr from 4.26% to 13.77% and improvement of soil enzyme activity under CS-FeS composites addition. Cr(VI) contamination reduced the diversity of microbial community in soil. Three dominate prokaryotic microorganisms, namely Proteobacteria, Actinobacteria and Firmicutes, were observed in Cr-contaminated soil. The addition of CS-FeS composites increased the microbial diversity especially for that in relative lower abundance. The relative abundance of Proteobacteria and Firmicute related to Cr-tolerance and reduction increased in CS-FeS composites added soils. Taking together, these results demonstrated the potential and promising of using the CS-FeS composites for Cr(VI) polluted soil remediation.
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Affiliation(s)
- Cui Shang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Youzheng Chai
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Liang Peng
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Jihai Shao
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Hongli Huang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Anwei Chen
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, PR China.
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Li JY, Huang HB, Wang N, Shi CW, Pan TX, Zhang B, Yang GL, Wang CF. Sanguinarine induces apoptosis in Eimeria tenella sporozoites via the generation of reactive oxygen species. Poult Sci 2022; 101:101771. [PMID: 35272108 PMCID: PMC8913342 DOI: 10.1016/j.psj.2022.101771] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/21/2022] [Accepted: 01/22/2022] [Indexed: 10/25/2022] Open
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Wang Y, Xiang F, Zhang Z, Hou Q, Guo Z. High-throughput sequencing-based analysis of fungal diversity and taste quality evaluation of Douchi, a traditional fermented food. Food Sci Nutr 2020; 8:6612-6620. [PMID: 33312545 PMCID: PMC7723193 DOI: 10.1002/fsn3.1953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 11/08/2022] Open
Abstract
Douchi, a popular traditional fermented soybean product, is mainly made by natural fermentation. However, its taste quality is affected by specific fungal communities which vary greatly according to fermentation conditions and production technologies used in different regions. Therefore, the taste quality of Douchi samples from different regions was digitally evaluated using electronic tongue technology. In addition, the fungal community structures and its association of them were also identified using high-throughput sequencing technology. Results showed that there were obvious differences in the taste quality of samples from different regions, while the tastes of different types of samples from the same region were similar. Sourness, umami, richness, and saltiness were the main reasons for regional differences in taste. Similarly, the results of high-throughput sequencing indicated that samples from different regions displayed important differences in dominant fungal genus, among which Debaryomyces, Fusarium, Pichia, Aspergillus, and Saccharomyces were the main dominant fungi. Debaryomyces and Trichosporon were conducive to the formation of taste qualities of Douchi, while Cladosporium and Candida have a negative impact on the taste quality of Douchi var correlation analysis. This study indicated the effects of dominant fungi on the formation of Douchi taste quality, allowing a deeper understanding of the role of microbial species in generating fermented soybean products in China. Our work provides theoretical support to guide the improvement of the industrial production process of Douchi.
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Affiliation(s)
- Yurong Wang
- Hubei Provincial Engineering and Technology Research Center for Food IngredientsHubei University of Arts and ScienceXiangyangChina
| | - Fanshu Xiang
- Hubei Provincial Engineering and Technology Research Center for Food IngredientsHubei University of Arts and ScienceXiangyangChina
| | - Zhendong Zhang
- Hubei Provincial Engineering and Technology Research Center for Food IngredientsHubei University of Arts and ScienceXiangyangChina
| | - Qiangchuan Hou
- Hubei Provincial Engineering and Technology Research Center for Food IngredientsHubei University of Arts and ScienceXiangyangChina
| | - Zhuang Guo
- Hubei Provincial Engineering and Technology Research Center for Food IngredientsHubei University of Arts and ScienceXiangyangChina
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7
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Liu Q, Zhang Y, Wu H, Liu F, Peng W, Zhang X, Chang F, Xie P, Zhang H. A Review and Perspective of eDNA Application to Eutrophication and HAB Control in Freshwater and Marine Ecosystems. Microorganisms 2020; 8:E417. [PMID: 32188048 PMCID: PMC7143994 DOI: 10.3390/microorganisms8030417] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/03/2020] [Accepted: 03/14/2020] [Indexed: 11/16/2022] Open
Abstract
Changing ecological communities in response to anthropogenic activities and climate change has become a worldwide problem. The eutrophication of waterbodies in freshwater and seawater caused by the effects of human activities and nutrient inputs could result in harmful algae blooms (HABs), decreases water quality, reductions in biodiversity and threats to human health. Rapid and accurate monitoring and assessment of aquatic ecosystems are imperative. Environmental DNA (eDNA) analysis using high-throughput sequencing has been demonstrated to be an effective and sensitive assay for detecting and monitoring single or multiple species in different samples. In this study, we review the potential applications of eDNA approaches in controlling and mitigating eutrophication and HABs in freshwater and marine ecosystems. We use recent studies to highlight how eDNA methods have been shown to be a useful tool for providing comprehensive data in studies of eutrophic freshwater and marine environments. We also provide perspectives on using eDNA techniques to reveal molecular mechanisms in biological processes and mitigate eutrophication and HABs in aquatic ecosystems. Finally, we discuss the feasible applications of eDNA for monitoring biodiversity, surveying species communities and providing instructions for the conservation and management of the environment by integration with traditional methods and other advanced techniques.
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Affiliation(s)
- Qi Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
| | - Yun Zhang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
| | - Han Wu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
| | - Fengwen Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
| | - Wei Peng
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
| | - Xiaonan Zhang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
| | - Fengqin Chang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
| | - Ping Xie
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, CAS, Wuhan 430072, China
| | - Hucai Zhang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; (Q.L.); (Y.Z.); (H.W.); (F.L.); (W.P.); (X.Z.); (F.C.); (P.X.)
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Neilen AD, Carroll AR, Hawker DW, O'Brien KR, Burford MA. Effects of photochemical and microbiological changes in terrestrial dissolved organic matter on its chemical characteristics and phytotoxicity towards cyanobacteria. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 695:133901. [PMID: 31756858 DOI: 10.1016/j.scitotenv.2019.133901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/08/2019] [Accepted: 08/12/2019] [Indexed: 06/10/2023]
Abstract
Previous studies have shown that under laboratory conditions, dissolved organic matter (DOM) leached from plants can be differentially more phytotoxic to cyanobacteria, compared to green algae. This study examined how DOM source and transformation processes (microbial and photochemical) affect its chemical composition and phytotoxicity towards a cultured species of cyanobacteria (Raphidiopsis raciborskii) using a factorial experimental design. To complement cyanobacterial bioassays, the chemical composition and associated changes in DOM were determined using spectroscopic (nuclear magnetic resonance (NMR) and absorbance) and elemental analyses. Sunlight exposed DOM from leaves of the terrestrial plants, Casuarina cunninghamiana and Eucalyptus tereticornis had the most phytotoxic effect compared to DOM not exposed to sunlight. This phytotoxic DOM was characterised by relatively low nitrogen content, containing highly coloured and relatively high molecular mass constituents. Both mixed effect model and PCA approaches to predict inhibition of photosynthetic yield indicated phytotoxicity could be predicted (P < 0.001) based upon the following parameters: C: N ratio; gilvin, and lignin-derived phenol content of DOM. Parallel proton-detected 1D and 2D NMR techniques showed that glucose anomers were the major constituents of fresh leachate. With ageing, glucose anomers disappeared and products of microbial transformation appeared, but there was no indication of the appearance of additional phytotoxic compounds. This suggests that reactive oxygen species may be responsible, at least partially, for DOM phytotoxicity. This study provides important new information highlighting the characteristics of DOM that link with phytotoxic effects.
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Affiliation(s)
- Amanda D Neilen
- Australian Rivers Institute & Griffith School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia.
| | - Anthony R Carroll
- Griffith School of Environment, Environmental Futures Research Institute, Griffith University, Gold Coast Campus, Parklands Drive, Southport, Queensland 4222, Australia.
| | - Darryl W Hawker
- Griffith School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia.
| | - Katherine R O'Brien
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, University of Queensland, St Lucia, QLD 4072, Australia.
| | - Michele A Burford
- Australian Rivers Institute & Griffith School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia.
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Chen C, Wang Y, Liu S, Feng R, Gu X, Qiao C. Research on the application of compound microorganism preparation in reusing urban reclaimed water in circulating cooling water system. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 80:1763-1773. [PMID: 32039908 DOI: 10.2166/wst.2019.430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A biological method was developed for reusing urban reclaimed water in circulating cooling water systems (CCWS), in which the compound microorganism preparation (CMP) mainly included nitrobacteria, Bacillus subtilis, photosynthetic bacteria and Thiobacillus denitrificans, was used to control the scaling, corrosion and biofouling of CCWS. The abundant carbon, nitrogen and phosphorus in urban reclaimed water met the needs of microbial growth. Compared with chemical agents, CMP had the advantages of high efficiency, no additional chemicals and being more economical. The research results showed that CMP improved water quality and decreased ammonia nitrogen (NH3-N) and chemical oxygen demand (COD). The concentration ratio of CCWS reached 3.87 using CMP. The corrosion inhibition rate of CMP and the removal rate on biofouling achieved 99.69% and 22.21%, respectively. The mechanisms of CMP to control scaling, corrosion and biofouling were discussed, and the surface characteristics and chemical compositions of corrosion products and biofouling were analyzed.
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Affiliation(s)
- Chuanmin Chen
- Department of Environmental Science and Engineering, North China Electric Power University (Baodong Campus), Baoding 071000, China E-mail:
| | - Yu Wang
- Department of Environmental Science and Engineering, North China Electric Power University (Baodong Campus), Baoding 071000, China E-mail:
| | - Songtao Liu
- Department of Environmental Science and Engineering, North China Electric Power University (Baodong Campus), Baoding 071000, China E-mail:
| | - Rongrong Feng
- Department of Environmental Science and Engineering, North China Electric Power University (Baodong Campus), Baoding 071000, China E-mail:
| | - Xingjia Gu
- Department of Environmental Science and Engineering, North China Electric Power University (Baodong Campus), Baoding 071000, China E-mail:
| | - Chuanxi Qiao
- Department of Environmental Science and Engineering, North China Electric Power University (Baodong Campus), Baoding 071000, China E-mail:
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