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Priyadarshini A, Mishra S, Sahoo NK, Raut S, Daverey A, Tripathy BC. Biodegradation of Phenol Using the Indigenous Rhodococcus pyridinivorans Strain PDB9T NS-1 Immobilized in Calcium Alginate Beads. Appl Biochem Biotechnol 2024; 196:2798-2818. [PMID: 37126112 DOI: 10.1007/s12010-023-04508-8] [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] [Accepted: 04/11/2023] [Indexed: 05/02/2023]
Abstract
Phenolic compounds are the major contaminants identified from various industrial effluents, which pose an extreme threat to the environment. Therefore, investigating an effective technique to remove these toxic phenolic compounds from the contaminated environment is very essential. In the present investigation, batch tests were performed to assess the biodegradation of phenol using an indigenous Rhodococcus pyridinivorans strain PDB9T NS-1 encapsulated in a calcium alginate bead system. In order to improve the mechanical stability, silica was added to the cell-embedded Ca-alginate beads. The impact of experimental conditions such as contact time, pH, and initial phenol doses was investigated. The biodegradation of phenol was examined over a wide range of phenol, and the results showed that more than 99.6% degradation was achieved at an initial phenol dose of 1000 mg/L in 70 h at 30 °C. Among the various sorption isotherm tested, the Freundlich isotherm was the best fitted to the experimental data. This behavior indicated a multilayer biosorption process and was controlled by heterogeneous surface energy. Based on an intra-particle diffusion model, internal mass transfer or pore diffusion predominated over exterior mass transfer in controlling the entire phenol biosorption process. The biosorption of phenol onto the cell encapsulated in the Ca-alginate bead follows pseudo-first-order kinetics with a superior phenol biosorption capacity of 155 mg/g of Ca-alginate. Further stability study revealed that the bead could be recycled successfully without any substantial decline in phenol degradation efficiency, indicating that the immobilized microbe possesses exceptional operating stability.
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Affiliation(s)
- Ankita Priyadarshini
- Department of Chemistry, Environmental Science Program, (ITER), Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, -751030, India
| | - Soumya Mishra
- Department of Chemistry, Environmental Science Program, (ITER), Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, -751030, India
| | - Naresh Kumar Sahoo
- Department of Chemistry, Environmental Science Program, (ITER), Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, -751030, India.
| | - Sangeeta Raut
- Centre for Biotechnology, Siksha 'O'Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Achlesh Daverey
- School of Environment & Natural Resources, Doon University, Dehradun, Uttarakhand, 248012, India
| | - Bankim Chandra Tripathy
- Faculty of Chemical Sciences (AcSIR), Department of Hydro and Electrometallurgy, Institute of Minerals and Materials Technology, Bhubaneswar, 751 013, India
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Zhang S, Feng L, Han Y, Xu Z, Xu L, An X, Zhang Q. Revealing the degrading-possibility of methyl red by two azoreductases of Anoxybacillus sp. PDR2 based on molecular docking. CHEMOSPHERE 2024; 351:141173. [PMID: 38232904 DOI: 10.1016/j.chemosphere.2024.141173] [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: 07/04/2023] [Revised: 10/27/2023] [Accepted: 01/08/2024] [Indexed: 01/19/2024]
Abstract
Azo dyes, as the most widely used synthetic dyes, are considered to be one of the culprits of water resources and environmental pollution. Anoxybacillus sp. PDR2 is a thermophilic bacterium with the ability to degrade azo dyes, whose genome contains two genes encoding azoreductases (named AzoPDR2-1 and AzoPDR2-2). In this study, through response surface methodology (RSM), when the initial pH, inoculation volume and Mg2+ addition amount were 7.18, 10.72% and 0.1 g/L respectively, the decolorization rate of methyl red (MR) (200 mg/L) could reach its maximum (98.8%). The metabolites after biodegradation were detected by UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), and liquid chromatography mass spectrometry (LC-MS/MS), indicating that MR was successfully decomposed into 4-aminobenzoic acid and other small substrates. In homologous modeling, it was found that both azoreductases were flavin-dependent azoreductases, and belonged to the α/β structure, using the Rossmann fold. In their docking results with the cofactor flavin mononucleotide (FMN), FMN bound to the surface of the protein dimer. Nicotinamide adenine dinucleotide (NADH) was superimposed on the plane of the pyrazine ring between FMN and the activity pocket of protein. Besides, both azoreductase complexes (azoreductase-FMN-NADH) exhibited a substrate preference for MR. Asn104 and Tyr74 played an important role in the combination of the azoreductase AzoPDR2-1 complex and the azoreductase AzoPDR2-2 complex with MR, respectively. This provided assistance for studying the mechanism of azoreductase biodegradation of azo dyes in thermophilic bacteria.
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Affiliation(s)
- Shulin Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Nanchang, 330045, PR China
| | - Linlin Feng
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Nanchang, 330045, PR China
| | - Yanyan Han
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Nanchang, 330045, PR China
| | - Zihang Xu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Nanchang, 330045, PR China
| | - Luhui Xu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Nanchang, 330045, PR China
| | - Xuejiao An
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Nanchang, 330045, PR China
| | - Qinghua Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Nanchang, 330045, PR China.
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Wen S, Liu H, Yang R, Wang L, Zhu L, Wang J, Kim YM, Wang J. Immobilization of Bacillus Thuringiensis and applicability in removal of sulfamethazine from soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:122080. [PMID: 37390917 DOI: 10.1016/j.envpol.2023.122080] [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: 02/10/2023] [Revised: 06/13/2023] [Accepted: 06/17/2023] [Indexed: 07/02/2023]
Abstract
Microbial degradation is considered an essential and promising treatment for sulfadimidine contamination of soil. To address the low colonization rates and inefficiencies of typical antibiotic-degrading bacteria, sulfamethazine (SM2)-degrading strain H38 is converted into immobilized bacteria in this study. Results show that the removal rate of SM2 by immobilized strain H38 reaches 98% at 36 h, whereas the removal rate of SM2 by free bacteria reaches 75.2% at 60 h. In addition, the immobilized bacteria H38 exhibits tolerance to a wide range of pH (5-9) and temperature (20 °C-40 °C). As the amount of inoculation increases and the initial concentration of SM2 decreases, the removal rate of SM2 by the immobilized strain H38 increases gradually. Laboratory soil remediation tests show that the immobilized strain H38 can remove 90.0% of SM2 from the soil on the 12th day, which exceeds the removal by free bacteria by 23.9% in the same period. Additionally, the results show that the immobilized strain H38 enhances the overall activity of microorganisms in SM2-contaminated soil. Compared with the SM2 only (control group containing no bacteria) and free bacterial treatment groups, the gene expression levels of ammonia-oxidizing archaea, ammonia-oxidizing bacteria, cbbLG, and cbbM increased significantly in the treatment group with immobilized strain H38. This study shows that immobilized strain H38 can reduce the effect of SM2 on soil ecology to a greater extent than free bacteria, while providing safe and effective remediation.
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Affiliation(s)
- Shengfang Wen
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
| | - Hunan Liu
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
| | - Rui Yang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
| | - Lanjun Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
| | - Lusheng Zhu
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
| | - Jun Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
| | - Young Mo Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seongdong-gu, Seoul, 04763, Republic of Korea.
| | - Jinhua Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
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Feng Y, Cui J, Xu B, Jiang Y, Fu C, Tan L. A Potentially Practicable Halotolerant Yeast Meyerozyma guilliermondii A4 for Decolorizing and Detoxifying Azo Dyes and Its Possible Halotolerance Mechanisms. J Fungi (Basel) 2023; 9:851. [PMID: 37623622 PMCID: PMC10456123 DOI: 10.3390/jof9080851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/09/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023] Open
Abstract
In this study, a halotolerant yeast that is capable of efficiently decolorizing and detoxifying azo dyes was isolated, identified and characterized for coping with the treatment of azo-dye-containing wastewaters. A characterization of the yeast, including the optimization of its metabolism and growth conditions, its detoxification effectiveness and the degradation pathway of the target azo dye, as well as a determination of the key activities of the enzyme, was performed. Finally, the possible halotolerance mechanisms of the yeast were proposed through a comparative transcriptome analysis. The results show that a halotolerant yeast, A4, which could decolorize various azo dyes, was isolated from a marine environment and was identified as Meyerozyma guilliermondii. Its optimal conditions for dye decolorization were ≥1.0 g/L of sucrose, ≥0.2 g/L of (NH4)2SO4, 0.06 g/L of yeast extract, pH 6.0, a temperature of 35 °C and a rotation speed of ≥160 rpm. The yeast, A4, degraded and detoxified ARB through a series of steps, relying on the key enzymes that might be involved in the degradation of azo dye and aromatic compounds. The halotolerance of the yeast, A4, was mainly related to the regulation of the cell wall components and the excessive uptake of Na+/K+ and/or compatible organic solutes into the cells under different salinity conditions. The up-regulation of genes encoding Ca2+-ATPase and casein kinase II as well as the enrichment of KEGG pathways associated with proteasome and ribosome might also be responsible for its halotolerance.
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Affiliation(s)
- Yue Feng
- Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian 116081, China; (Y.F.); (J.C.); (Y.J.); (C.F.)
| | - Jingru Cui
- Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian 116081, China; (Y.F.); (J.C.); (Y.J.); (C.F.)
| | - Bingwen Xu
- Dalian Center for Certification and Food and Drug Control, Dalian 116037, China;
| | - Yifan Jiang
- Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian 116081, China; (Y.F.); (J.C.); (Y.J.); (C.F.)
| | - Chunqing Fu
- Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian 116081, China; (Y.F.); (J.C.); (Y.J.); (C.F.)
| | - Liang Tan
- Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian 116081, China; (Y.F.); (J.C.); (Y.J.); (C.F.)
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Gaur VK, Gupta S, Pandey A. Evolution in mitigation approaches for petroleum oil-polluted environment: recent advances and future directions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:61821-61837. [PMID: 34420173 DOI: 10.1007/s11356-021-16047-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Increasing petroleum consumption and a rise in incidental oil spillages have become global concerns owing to their aquatic and terrestrial toxicity. Various physicochemical and biological treatment strategies have been studied to tackle them and their impact on environment. One of such approaches in this regard is the use of microbial processes due to their being "green" and also apparent low cost and high effectiveness. This review presents the advancement in the physical and biological remediation methods and their progressive efficacy if employed in combination of hybrid modes. The use of biosurfactants and/or biochar along with microbes seems to be a more effective bioremediation approach as compared to their individual effects. The lacuna in research at community or molecular level has been overcome by the recent introduction of "-omics" technology in hydrocarbon degradation. Thus, the review further focuses on presenting the state-of-art information on the advancement of petroleum bioremediation strategies and identifies the research gaps for achieving total mitigation of petroleum oil.
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Affiliation(s)
- Vivek Kumar Gaur
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India
| | | | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, India.
- Centre for Energy and Environmental Sustainability, Lucknow, 226029, India.
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6
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Wu H, Xu X, Qin Y, Jiang Y, Lin Z. Study on treatment of acid red G with bio-carbon compound immobilized white rot fungi. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:2945-2963. [PMID: 35638798 DOI: 10.2166/wst.2022.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Corn straw biochar was used as a carrier to immobilize white rot fungi and the removal performance of immobilized pellets for acid red G (ARG) dye was studied. The results showed that the removal rate of ARG could reach 96.17% under the best preparation conditions of immobilized pellets (3% sodium alginate concentration, 0.7% corn straw biochar, 5% white rot fungus mycelium suspension, 4% CaCl2, and 36 h immobilization time). The orthogonal test results showed that the best combination was the immobilized pellets dosage of 200/100 mL, pH of 4.5, rotation speed of 150 r/min, and initial concentration of 20 mg/L dye at 30 °C. The degradation pathway of ARG by immobilized microspheres was studied by ultraviolet-visible spectrometer, Fourier transform infrared spectroscopy, and liquid chromatography-mass spectrometry. The results showed that ARG was degraded into aniline and 5-(acetamino)-4-hydroxy-3-amino-2,7-naphthalene disulfonic acid. Aniline was further deaminated to form benzene, and benzene was ring opened to form other organic compounds; 5-(acetylamino)-4-hydroxy-3-amino-2,7-naphthalene disulfonic acid was dehydroxylated to form 5-(acetylamino)-3-amino-2,7-naphthalene disulfonic acid. This study shows that the prepared biochar immobilized pellets can be used as an efficient water treatment material to remove ARG dye from wastewater.
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Affiliation(s)
- Huifang Wu
- College of Urban Construction, Nanjing Tech University, Nanjing, China E-mail:
| | - Xinyu Xu
- College of Urban Construction, Nanjing Tech University, Nanjing, China E-mail:
| | - Yu Qin
- College of Urban Construction, Nanjing Tech University, Nanjing, China E-mail:
| | - Yu Jiang
- College of Urban Construction, Nanjing Tech University, Nanjing, China E-mail:
| | - Zhen Lin
- College of Urban Construction, Nanjing Tech University, Nanjing, China E-mail:
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7
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Deng L, Guo W, Ngo HH, Zhang X, Chen C, Chen Z, Cheng D, Ni SQ, Wang Q. Recent advances in attached growth membrane bioreactor systems for wastewater treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:152123. [PMID: 34864031 DOI: 10.1016/j.scitotenv.2021.152123] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/28/2021] [Accepted: 11/28/2021] [Indexed: 06/13/2023]
Abstract
To tackle membrane fouling and limited removals of pollutants (nutrients and emerging pollutants) that hinder the wide applications of membrane bioreactor (MBR), attached growth MBR (AGMBR) combining MBR and attached growth process has been developed. This review comprehensively presents the up-to-date developments of media used in both aerobic and anaerobic AGMBRs for treating wastewaters containing conventional and emerging pollutants. It also elaborates the properties of different media, characteristics of attached biomass, and their contributions to AGMBR performance. Conventional media, such as biological activated carbon and polymeric carriers, induce formation of aerobic, anoxic and/or anaerobic microenvironment, increase specific surface area or porous space for biomass retention, improve microbial activities, and enrich diverse microorganisms, thereby enhancing pollutants removal. Meanwhile, new media (i.e. biochar, bioaugmented carriers with selected strain/mixed cultures) do not only eliminate conventional pollutants (i.e. high concentration of nitrogen, etc.), but also effectively remove emerging pollutants (i.e. micropollutants, nonylphenol, adsorbable organic halogens, etc.) by forming thick and dense biofilm, creating anoxic/anaerobic microenvironments inside the media, enriching special functional microorganisms and increasing activity of microorganisms. Additionally, media can improve sludge characteristics (i.e. less extracellular polymeric substances and soluble microbial products, larger floc size, better sludge settleability, etc.), alleviating membrane fouling. Future studies need to focus on the development and applications of more new functional media in removing wider spectrum of emerging pollutants and enhancing biogas generation, as well as scale-up of lab-scale AGMBRs to pilot or full-scale AGMBRs.
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Affiliation(s)
- Lijuan Deng
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia
| | - Wenshan Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia; Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, University of Technology Sydney and Tianjin Chengjian University,.
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia; Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, University of Technology Sydney and Tianjin Chengjian University,.
| | - Xinbo Zhang
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, University of Technology Sydney and Tianjin Chengjian University,; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China
| | - Cheng Chen
- Infinite Water Holdings Pty Ltd., Unit 17/809 Botany Road, Rosebery, Sydney, NSW 2018, Australia
| | - Zhuo Chen
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Dongle Cheng
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia
| | - Shou-Qing Ni
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Quan Wang
- Department of Environment Science & Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
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Al-Tohamy R, Ali SS, Li F, Okasha KM, Mahmoud YAG, Elsamahy T, Jiao H, Fu Y, Sun J. A critical review on the treatment of dye-containing wastewater: Ecotoxicological and health concerns of textile dyes and possible remediation approaches for environmental safety. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 231:113160. [PMID: 35026583 DOI: 10.1016/j.ecoenv.2021.113160] [Citation(s) in RCA: 385] [Impact Index Per Article: 192.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 05/21/2023]
Abstract
The synthetic dyes used in the textile industry pollute a large amount of water. Textile dyes do not bind tightly to the fabric and are discharged as effluent into the aquatic environment. As a result, the continuous discharge of wastewater from a large number of textile industries without prior treatment has significant negative consequences on the environment and human health. Textile dyes contaminate aquatic habitats and have the potential to be toxic to aquatic organisms, which may enter the food chain. This review will discuss the effects of textile dyes on water bodies, aquatic flora, and human health. Textile dyes degrade the esthetic quality of bodies of water by increasing biochemical and chemical oxygen demand, impairing photosynthesis, inhibiting plant growth, entering the food chain, providing recalcitrance and bioaccumulation, and potentially promoting toxicity, mutagenicity, and carcinogenicity. Therefore, dye-containing wastewater should be effectively treated using eco-friendly technologies to avoid negative effects on the environment, human health, and natural water resources. This review compares the most recent technologies which are commonly used to remove dye from textile wastewater, with a focus on the advantages and drawbacks of these various approaches. This review is expected to spark great interest among the research community who wish to combat the widespread risk of toxic organic pollutants generated by the textile industries.
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Affiliation(s)
- Rania Al-Tohamy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Sameh S Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Fanghua Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China
| | - Kamal M Okasha
- Internal Medicine and Nephrology Department, Faculty of Medicine, Tanta University, Tanta 31527, Egypt
| | - Yehia A-G Mahmoud
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Tamer Elsamahy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Haixin Jiao
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yinyi Fu
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; School of the Environment and Agrifood, Cranfield University, MK43 0AL, UK
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
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Singh A, Pal DB, Mohammad A, Alhazmi A, Haque S, Yoon T, Srivastava N, Gupta VK. Biological remediation technologies for dyes and heavy metals in wastewater treatment: New insight. BIORESOURCE TECHNOLOGY 2022; 343:126154. [PMID: 34673196 DOI: 10.1016/j.biortech.2021.126154] [Citation(s) in RCA: 93] [Impact Index Per Article: 46.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
The pollution of the environment caused by dyes and heavy metals emitted by industries has become a worldwide problem. The development of efficient, environmentally acceptable, and cost-effective methods of wastewater treatment containing dyes and heavy metals is critical. Biologically based techniques for treating effluents are fascinating since they provide several benefits over standard treatment methods. This review assesses the most recent developments in the use of biological based techniques to remove dyes and heavy metals from wastewater. The remediation of dyes and heavy metals by diverse microorganisms such as algae, bacteria, fungi and enzymes are depicted in detail. Ongoing biological method's advances, scientific prospects, problems, and the future prognosis are all highlighted. This review is useful for gaining a better integrated view of biological based wastewater treatment and for speeding future research on the function of biological methods in water purification applications.
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Affiliation(s)
- Arvind Singh
- Department of Chemical Engineering, Birsa Institute of Technology Sindri, Dhanbad 828123, India
| | - Dan Bahadur Pal
- Department of Chemical Engineering, Birla Institute of Technology Mesra, Ranchi 835215, India
| | - Akbar Mohammad
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 38541, South Korea
| | - Alaa Alhazmi
- Medical Laboratory Technology Department Jazan University, Jazan, Saudi Arabia; SMIRES for Consultation in Specialized Medical Laboratories, Jazan University, Jazan, Saudi Arabia
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia; Bursa Uludağ University Faculty of Medicine, Görükle Campus, 16059, Nilüfer, Bursa, Turkey
| | - Taeho Yoon
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 38541, South Korea
| | - Neha Srivastava
- Department of Chemical Engineering & Technology, IIT (BHU), Varanasi 221005, India
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK.
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Rational design of Aspergillus flavus A5p1-immobilized cell system to enhance the decolorization of reactive blue 4 (RB4). Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.11.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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11
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Xu L, Ali A, Su J, Huang T, Wang Z, Yang Y. Denitrification potential of sodium alginate gel beads immobilized iron-carbon, Zoogloea sp. L2, and riboflavin: Performance optimization and mechanism. BIORESOURCE TECHNOLOGY 2021; 336:125326. [PMID: 34052544 DOI: 10.1016/j.biortech.2021.125326] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
A kind of gel beads loaded with iron-carbon powder (Fe-C), Zoogloea sp. L2, and riboflavin (VB2) were prepared through cross-linking of sodium alginate (SA) to establish an immobilized bioreactor. The optimal ratio of SA beads was adjusted by orthogonal experiment. The change of oxidation-reduction potential (ORP) and the concentration of Fe2+ and Fe3+ showed that the addition of VB2 as a redox mediator can promote denitrification. Under the optimal conditions (carbon to nitrogen (C/N) ratio = 2.0, pH = 7.0, and hydraulic retention time (HRT) = 8 h), the nitrate removal efficiency (NRE) of bioreactor reached 98.48% (1.99 mg L-1h-1). Furthermore, Fourier transform infrared spectrometer (FTIR), Fluorescence excitation-emission matrix (EEM), X-ray diffraction (XRD), and gas chromatography (GC) analysis revealed that the immobilization and denitrification of the immobilized bioreactor were excellent. High throughput sequencing also showed that Zoogloea played a vital role in nitrate removal.
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Affiliation(s)
- Liang Xu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Junfeng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Tingling Huang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhao Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Yuzhu Yang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
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12
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Pandey AK, Gaur VK, Udayan A, Varjani S, Kim SH, Wong JWC. Biocatalytic remediation of industrial pollutants for environmental sustainability: Research needs and opportunities. CHEMOSPHERE 2021; 272:129936. [PMID: 35534980 DOI: 10.1016/j.chemosphere.2021.129936] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/24/2021] [Accepted: 02/06/2021] [Indexed: 06/14/2023]
Abstract
An increasing quantum of pollutants from various industrial sector activities represents a severe menace to environmental & ecological balance. Bioremediation is gaining flow globally due to its cost-effective and environment-friendly nature. Understanding biodegradation mechanisms is of high ecological significance. Application of microbial enzymes has been reported as sustainable approach to mitigate the pollution. Immobilized enzyme catalyzed transformations are getting accelerated attention as potential alternatives to physical and chemical methods. The attention is now also focused on developing novel protein engineering strategies and bioreactor design systems to ameliorate overall biocatalysis and waste treatment further. This paper presents and discusses the most advanced and state of the art scientific & technical developments about biocatalytic remediation of industrial pollutants. It also covers various biocatalysts and the associated sustainable technologies to remediate various pollutants from waste streams. Enzyme production and immobilization in bioreactors have also been discussed. This paper also covers challenges and future research directions in this field.
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Affiliation(s)
| | - Vivek K Gaur
- CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Aswathy Udayan
- CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695 019, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, 382010, Gujarat, India.
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jonathan W C Wong
- Institute of Bioresource and Agriculture, Hong Kong Baptist University, Hong Kong
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13
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Liu X, Wang L, Shi J. Micro-Polluted Surface Water Treated by Yeast-Chitosan Bio-Microcapsules. MATERIALS 2020; 13:ma13163519. [PMID: 32784975 PMCID: PMC7475811 DOI: 10.3390/ma13163519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/31/2020] [Accepted: 08/04/2020] [Indexed: 11/18/2022]
Abstract
Ammonia nitrogen and natural organic matter (NOM) seriously degrade the quality of surface waters. In this study, the optimum preparation conditions of a yeast-chitosan bio-microcapsule of the Candida tropicalis strain, used to treat micro-polluted surface water, were investigated. Fourier transform infrared spectroscopy and scanning electron microscopy were used to characterize the bio-microcapsules. A continuous laboratory-scale reaction apparatus was built to evaluate the engineering applications of the bio-microcapsules and their treatment efficiency for major pollutants in micro-polluted raw water. The yeast-chitosan bio-microcapsules were found to rapidly and effectively remove suspended solids and ammonia nitrogen. Moreover, the bio-microcapsule pre-treatment process was capable of resisting impact loads and fluctuations in water quality. Even at low temperatures (12 °C), the removal rate of ammonia nitrogen still reached 79%. The treatment did not lead to a temporary increase in nitrite concentration, nor to the excessive accumulation of nitrogen. The application of bio-microcapsules is simple; it only requires aeration and certain nutrient substrates, and can be adapted to treat raw drinking water with a poor nutrient substrate, therefore showing promise for future use in engineering applications.
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Affiliation(s)
- Xiao Liu
- Ren’ai College, Tianjin University, Tianjin 301636, China;
| | - Lin Wang
- Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
| | - Jun Shi
- Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
- Correspondence: ; Tel.: +86-13816106290
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Zhang M, Wan Y, Wen Y, Li C, Kanwal A. A novel Poly(vinyl alcohol) / carboxymethyl cellulose / yeast double degradable hydrogel with yeast foaming and double degradable property. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 187:109765. [PMID: 31670239 DOI: 10.1016/j.ecoenv.2019.109765] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/24/2019] [Accepted: 10/04/2019] [Indexed: 06/10/2023]
Abstract
A novel polyvinyl alcohol/carboxymethyl cellulose/yeast double degradable hydrogel was prepared with yeast as a foaming agent. The chemical structure of the hydrogel was characterized by FTIR and XPS. The micro-structure of the hydrogel was observed by SEM. The specific surface area and pore size of hydrogel were measured by BET. Methylene blue adsorption capacity of the hydrogels were investigated and the adsorption mechanism was explored. The biodegradability of double degradable hydrogel was investigated. The results showed that yeast was encapsulated in hydrogel by electrostatic action. With the addition of yeast, not only the specific surface area and average pore size of the hydrogel increased but also methylene blue maximum adsorption capacity of the double degradable hydrogel (110 ± 3.5 mg/g) was significantly higher than that of the hydrogel without yeast (57 ± 1.9 mg/g). The adsorption mechanism was dominated by chemical adsorption and was accompanied by biodegradable and electrostatic adsorption. The kinetic data were fitted to the pseudo-second-order kinetic model reasonably well. The introduction of yeast promoted the biodegradable of hydrogel and increased the degradation rate of polyvinyl alcohol in the material with a maximum degradation rate of 45 ± 2.8%.
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Affiliation(s)
- Min Zhang
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Yu Wan
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Yunxuan Wen
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing, 100048, China.
| | - Chengtao Li
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Aqsa Kanwal
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
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Zhang Q, Xie X, Liu Y, Zheng X, Wang Y, Cong J, Yu C, Liu N, Sand W, Liu J. Co-metabolic degradation of refractory dye: A metagenomic and metaproteomic study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113456. [PMID: 31784270 DOI: 10.1016/j.envpol.2019.113456] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/18/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Fructose was utilized as an additional co-substrate to systematically investigate the molecular mechanism of its boosting effect for the degradation of refractory dye reactive black 5 (RB5) by a natural bacterial flora DDMZ1. A decolorizing rate of 98% was measured for sample YE + FRU(200) (with 3 g/L fructose additionally to yeast extract medium, 10% (v/v) inoculation size of flora DDMZ1, 200 mg/L RB5) after 48 h. This result was 21% and 77%, respectively, higher than those of samples with only yeast extract or only fructose. Fructose was found to significantly stimulated both intracellular and extracellular azoreductase secretion causing enhanced activity. Metagenomic sequencing technology was used to analyze the functional potential of genes. A label-free quantitative proteomic approach further confirmed the encoding of functional proteins by the candidate genes. Subsequently, the molecular mechanism of RB5 degradation by candidate genes and functional proteins of the dominant species were proposed. This study provides important perspectives to the molecular mechanism of co-metabolic degradation of refractory pollutants by a natural bacterial flora.
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Affiliation(s)
- Qingyun Zhang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Xuehui Xie
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
| | - Yanbiao Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Xiulin Zheng
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Yiqin Wang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Junhao Cong
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Chengzhi Yu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Na Liu
- School of Environment and Surveying Engineering, Suzhou University, Suzhou, Anhui, 234000, China
| | - Wolfgang Sand
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; Institute of Biosciences, Freiberg University of Mining and Technology, Freiberg, 09599, Germany; Biofilm Centre, University Duisburg-Essen, Essen, Germany
| | - Jianshe Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
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Multistage fluidized bed bioreactor for dye decolorization using immobilized polyurethane foam: A novel approach. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107368] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Rodrigues de Almeida EJ, Christofoletti Mazzeo DE, Deroldo Sommaggio LR, Marin-Morales MA, Rodrigues de Andrade A, Corso CR. Azo dyes degradation and mutagenicity evaluation with a combination of microbiological and oxidative discoloration treatments. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109484. [PMID: 31398583 DOI: 10.1016/j.ecoenv.2019.109484] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 07/23/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
This work evaluated the degradation of the Acid Blue 161 and Procion Red MX-5B dyes in a binary solution by the filamentous fungus Aspergillus terreus and the yeast Saccharomyces cerevisiae in systems with and without electrochemical oxidation as the pretreatment process. UV-Vis spectrophotometry, high-performance liquid chromatography with (HPLC), Fourier transform infrared (FT-IR) spectroscopy and Salmonella/microsome assay (Ames test) were applied towards the degradation analysis of the dyes. Adsorption tests with white clay immobilized on alginate were also conducted after the discoloration treatments to remove intermediate metabolites formed during the degradation of the dye molecules. The discoloration treatments led to the complete color removal of the solutions in all the systems tested. The clay demonstrated affinity for the metabolites formed after discoloration treatments, the removal rates were variable, but the all systems has proved efficient. The Salmonella/microsome assay (Ames test) with strains TA98 and TA100 in the absence and presence of exogenous metabolism (S9 microsomal system, Moltox) revealed that the initial molecules and by-products of the metabolism of the dyes were direct mutagens. The electrochemical/A. terreus/clay system was able to discolor the solutions and transform the direct mutagens into non-mutagenic compounds in addition to reducing the mutagenic potency of the pro-mutagens to the Salmonella strain TA100/S9, which demonstrates the high efficiency of this system with regard to discoloring and degrading azo dye molecules and their by-products. Therefore, this study showed that although not having standard treatment system for this type of pollutant, the combination of treatments can be considered promising. The use of electrochemical oxidation along with microbiological treatment may lead to the degradation and mineralization of these compounds, reducing or eliminating the environmental impact caused by the improper disposal of these dyes in aquatic environments.
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Affiliation(s)
- Erica Janaina Rodrigues de Almeida
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901, Ribeirão Preto, SP, Brazil.
| | - Dânia Elisa Christofoletti Mazzeo
- Departamento de Bioquímica e Microbiologia, Instituto de Biociências, Universidade Estadual de São Paulo (Unesp), Av. 24-A, 1515, 13506-900, Rio Claro, SP, Brazil
| | - Lais Roberta Deroldo Sommaggio
- Departamento de Biologia, Instituto de Biociências, Universidade Estadual de São Paulo (Unesp), Av. 24-A, 1515, 13506-900, Rio Claro, SP, Brazil
| | - Maria Aparecida Marin-Morales
- Departamento de Biologia, Instituto de Biociências, Universidade Estadual de São Paulo (Unesp), Av. 24-A, 1515, 13506-900, Rio Claro, SP, Brazil
| | - Adalgisa Rodrigues de Andrade
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901, Ribeirão Preto, SP, Brazil; Unesp, National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, P.O. Box 355, 14800-900, Araraquara, SP, Brazil
| | - Carlos Renato Corso
- Departamento de Bioquímica e Microbiologia, Instituto de Biociências, Universidade Estadual de São Paulo (Unesp), Av. 24-A, 1515, 13506-900, Rio Claro, SP, Brazil
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Effects of CaCl2 freeze-drying and acidic solutions on the reusability of calcium alginate beads; and degradation of phenol by immobilized Acinetobacter sp. PR1. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107339] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Deng F, Sun J, Dou R, Deng W, Liu Y, Yang C, Dang Z. Mechanism of enhancing pyrene-degradation ability of bacteria by layer-by-layer assembly bio-microcapsules materials. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 181:525-533. [PMID: 31234067 DOI: 10.1016/j.ecoenv.2019.06.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/24/2019] [Accepted: 06/05/2019] [Indexed: 06/09/2023]
Abstract
The mechanism of improving pyrene (PYR)-degrading ability of bacteria CP13 in Layer-by-layer (LBL) assembly chitosan/alginate (CHI/ALG) bio-microcapsules was investigated. Flow cytometry analysis showed that LBL microcapsules could effectively slow down the increasing rate of bacterial cell membrane permeability and the decreasing rate of the membrane potential, so as to reduce the death rate and number of the cells, which could protect the degrading bacteria. The results of Fluorescence spectrum, circular dichroism (CD) spectrum and laser light scattering (LLS) analysis revealed that the other possible mechanism for LBL microcapsules to promote bacterial degradation were following: CHI could enter the secondary structure of the protein of the extracellular polymeric substances (EPS) from CP13 and combined with EPS to generate a stable ground material, which had larger molecular weight (3.76×106 g mol-1) than the original EPS (2.52×106 g mol-1). The combination of CHI and EPS resulted in the decrease of the density of EPS from 1.18 to 0.72 g L-1, suggesting that CHI can loosen the EPS configurations, improving the capture ability of bacteria for PYR as well as the mass transfer of PYR from the extracellular to intracellular, thus eventually promoting the bacteria degrade performance.
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Affiliation(s)
- Fucai Deng
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China; College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Jianteng Sun
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China
| | - Rongni Dou
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China; College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Wangming Deng
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China
| | - Yi Liu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China
| | - Chen Yang
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Zhi Dang
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
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20
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Characterization of biogenic selenium nanoparticles derived from cell-free extracts of a novel yeast Magnusiomyces ingens. 3 Biotech 2019; 9:221. [PMID: 31114745 DOI: 10.1007/s13205-019-1748-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/08/2019] [Indexed: 12/21/2022] Open
Abstract
A facile one-pot and effective green process for biogenic selenium nanoparticles (SeNPs) was obtained using the cell-free extracts of a novel yeast Magnusiomyces ingens LH-F1. The corresponding absorption peak of SeNPs was observed at ~ 560 nm by UV-vis spectrophotometer. In the present study, SeO2 2 mM, protein 500 mg L-1 and pH 7 were preferable to the biosynthesis of SeNPs. The effects of pH, SeO2 concentration and protein concentration on the synthesis process were different. Transmission electron microscopy image exhibited that all the SeNPs were spherical and quasi-spherical with the diameters mainly distributed in 70-90 nm (average particles size was 87.82 ± 2.71 nm). X-ray diffraction suggested that the nanoparticles were composed of standard hexagonal crystalline Se with high purity. Fourier transform infrared spectroscopy indicated that some biomolecules such as hydroxyl, carboxyl and amino groups in the yeast cell-free extracts might be involved in the formation of SeNPs. Analyses of sodium dodecyl sulfate-polyacrylamide gel electrophoresis revealed that two proteins with low molecular weight approximately ~ 16 and ~ 21 kDa were detected on the surface of SeNPs and in the extracts, which could play the role of natural stabilizers and confer stability to synthesized SeNPs; whereas, unbound proteins on the SeNPs surface could act as reducing agents. Antibacterial analysis showed that the SeNPs could inhibit Arthrobacter sp. W1 (Gram positive) but not E. coli BL21 (Gram negative), which could provide reference for antimicrobial application of biogenic SeNPs.
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Zhang Q, Xie X, Liu Y, Zheng X, Wang Y, Cong J, Yu C, Liu N, Liu J, Sand W. Fructose as an additional co-metabolite promotes refractory dye degradation: Performance and mechanism. BIORESOURCE TECHNOLOGY 2019; 280:430-440. [PMID: 30784993 DOI: 10.1016/j.biortech.2019.02.046] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/07/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
In this work, the performance and mechanism for the boosting effects of fructose as an additional co-metabolite towards the biological treatment of reactive black 5 were systematically investigated. A decolorization efficiency of 98% was obtained in sample FRU200 (with 3 g/L fructose added based on 3 g/L yeast extract), which was 21% higher than that without fructose. Several intermediates with low molecular weight generated in sample FRU200 and different metabolic pathways were deduced. The bacterial community structure significantly changed due to fructose addition. Label-free quantitative proteomic approach suggested that several up-regulated proteins in sample FRU200 might play essential roles during the degradation. Furthermore, the mechanisms of RB5 degradation by proteins/enzymes of the dominant species in flora DDMZ1 were proposed. This work deepens our understanding of the molecular and ecological mechanism of fructose as co-metabolite enhancing the biodegradation of refractory organic pollutants by a natural bacterial flora.
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Affiliation(s)
- Qingyun Zhang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Xuehui Xie
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Yanbiao Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Xiulin Zheng
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yiqin Wang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Junhao Cong
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Chengzhi Yu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Na Liu
- School of Environment and Surveying Engineering, Suzhou University, Suzhou, Anhui 234000, China
| | - Jianshe Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Wolfgang Sand
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Institute of Biosciences, Freiberg University of Mining and Technology, Freiberg 09599, Germany; Biofilm Centre, University Duisburg-Essen, Essen, Germany
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Xu X, Zhou H, Chen X, Wang B, Jin Z, Ji F. Biodegradation potential of polycyclic aromatic hydrocarbons by immobilized Klebsiella sp. in soil washing effluent. CHEMOSPHERE 2019; 223:140-147. [PMID: 30772593 DOI: 10.1016/j.chemosphere.2019.01.196] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 01/18/2019] [Accepted: 01/31/2019] [Indexed: 06/09/2023]
Abstract
A strain KL (Klebsiella sp.), with a high polycyclic aromatic hydrocarbons (PAHs) degradation efficiency, was isolated and purified. Immobilization of strain KL using a boric acid-CaCl2 cross-linking method based on polyvinyl alcohol (PVA)-sodium alginate (SA)-nano alumina (ALNPs) composite was investigated for removal of phenanthrene (PHE), fluoranthene (FLA), and pyrene (PYR) in soil washing effluent. The concentration of PVA, SA, and ALNPs in immobilized beads had significant effects on the physicochemical properties and biodegradation performance. When beads had a PVA, SA, and ALNPs content of 10% (w/v), 0.8% (w/v), and 0.7% (w/v), and the initial biomass dosage was 10% (v/v), the biodegradation efficiency and mass transfer performance of the immobilized beads were optimal with the specific surface area of 13.3971 m2/g. Scanning electron microscopy (SEM) showed that the surface of immobilized beads was dense. The growth and adhesion of cells inside the beads were adequate, and pores of the beads were abundant and irregularly staggered. The immobilization method was successfully applied to the treatment of the three PAHs in soil washing effluent. Adsorption of beads contributed to PAHs removal in the initial stage of degradation. Higher residual concentrations of Tween 80 in the soil washing effluent have toxic effects on strain KL growth and reduce the PAHs degradation capacity. Tween 80 of 2500 mg/L was proper conditions for PAHs biodegradation efficiency. Compared to freely suspended KL cells, the removal rates of PHE, FLA, and PYR using the immobilization method on the 30th day were increased by 15.91%, 17.07%, and 19.08%, respectively.
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Affiliation(s)
- Xiaoyi Xu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, 400045, China.
| | - Hang Zhou
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, 400045, China.
| | - Xi Chen
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, 400045, China.
| | - Bin Wang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, 400045, China.
| | - Zhaoxia Jin
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, 400045, China.
| | - Fangying Ji
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, 400045, China.
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Mishra S, Maiti A. Process optimization for effective bio-decolourization of reactive orange 16 using chemometric methods. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 54:179-192. [PMID: 30590996 DOI: 10.1080/10934529.2018.1541383] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 10/20/2018] [Accepted: 10/24/2018] [Indexed: 06/09/2023]
Abstract
Azo group containing reactive dyes are most commonly used in textile and tannery industries due to its bright appearance and stable color. This study aims to investigate the decolourization of reactive orange 16 (RO16) dye by Pseudomonas aeruginosa 23N1 along with removal of chromate (Cr(VI)) and evaluation of optimal process condition. The regular two-level factorial design is used to screen out operational parameters and selects their levels for further optimization process through central composite design (CCD) based response surface methodology (RSM). The result revealed that glucose and peptone have a negative effect on the performance of dye decolourization. Bacteria exhibit high decolourization potential in yeast extract supplemented culture medium with no addition of external carbon sources. The percentages of decolourization obtained in model validated experiments are obtained as 95.0 ± 0.4% and 95.1 ± 0.5% for initial dye 50 mg/L and 150 mg/L, respectively, which exhibit satisfactory correlation with model predicted response. The simultaneous dye and Cr(VI) removal has been explored in this study. The decolourization of dye is only affected due to presence of high Cr(VI) concentration (>120 mg/L). Bacteria have shown satisfactorily decolourization for RO16 contaminated industrial wastewater. The strain 23N1 could be a good biological agent for decolourization of RO16 dye.
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Affiliation(s)
- Saurabh Mishra
- a Department of Polymer and Process Engineering , Indian Institute of Technology Roorkee , Saharanpur , Uttar Pradesh , India
| | - Abhijit Maiti
- a Department of Polymer and Process Engineering , Indian Institute of Technology Roorkee , Saharanpur , Uttar Pradesh , India
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24
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Brejová B, Lichancová H, Brázdovič F, Hegedűsová E, Forgáčová Jakúbková M, Hodorová V, Džugasová V, Baláž A, Zeiselová L, Cillingová A, Neboháčová M, Raclavský V, Tomáška Ľ, Lang BF, Vinař T, Nosek J. Genome sequence of the opportunistic human pathogen Magnusiomyces capitatus. Curr Genet 2018; 65:539-560. [PMID: 30456648 DOI: 10.1007/s00294-018-0904-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 11/12/2018] [Accepted: 11/13/2018] [Indexed: 01/12/2023]
Abstract
The yeast Magnusiomyces capitatus is an opportunistic human pathogen causing rare yet severe infections, especially in patients with hematological malignancies. Here, we report the 20.2 megabase genome sequence of an environmental strain of this species as well as the genome sequences of eight additional isolates from human and animal sources providing an insight into intraspecies variation. The distribution of single-nucleotide variants is indicative of genetic recombination events, supporting evidence for sexual reproduction in this heterothallic yeast. Using RNAseq-aided annotation, we identified genes for 6518 proteins including several expanded families such as kexin proteases and Hsp70 molecular chaperones. Several of these families are potentially associated with the ability of M. capitatus to infect and colonize humans. For the purpose of comparative analysis, we also determined the genome sequence of a closely related yeast, Magnusiomyces ingens. The genome sequences of M. capitatus and M. ingens exhibit many distinct features and represent a basis for further comparative and functional studies.
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Affiliation(s)
- Bronislava Brejová
- Faculty of Mathematics, Physics, and Informatics, Comenius University in Bratislava, Bratislava, Slovakia.
| | - Hana Lichancová
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Filip Brázdovič
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Eva Hegedűsová
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia.,Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czech Republic
| | | | - Viktória Hodorová
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Vladimíra Džugasová
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Andrej Baláž
- Faculty of Mathematics, Physics, and Informatics, Comenius University in Bratislava, Bratislava, Slovakia
| | - Lucia Zeiselová
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Andrea Cillingová
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Martina Neboháčová
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Vladislav Raclavský
- Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | - Ľubomír Tomáška
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - B Franz Lang
- Robert Cedergren Centre for Bioinformatics and Genomics, Université de Montréal, Montréal, QC, Canada
| | - Tomáš Vinař
- Faculty of Mathematics, Physics, and Informatics, Comenius University in Bratislava, Bratislava, Slovakia
| | - Jozef Nosek
- Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia.
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Li Q, Feng X, Lu X, Li T, Han X, Xiao X, Wu X, Liu Z, Yang M, Feng Y. Combined intra- and extracellular reduction involved in the anaerobic biodecolorization of cationic azo dye by Shewanella oneidensis MR-1. CHEMOSPHERE 2018; 211:701-708. [PMID: 30098566 DOI: 10.1016/j.chemosphere.2018.08.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 07/13/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
Microbial reduction decolorization is a promising strategy for cationic azo dye pollution remediation, but the reduction mechanism is unclear yet. In this work, the anaerobic reduction decolorization mechanism of cationic red X-GRL (X-GRL) by Shewanella oneidensis MR-1 (MR-1) was investigated from both intracellular and extracellular aspects. The exogenous additional riboflavin treatment test was used to analyze the extracellular reduction mechanism of X-GRL, and the actual role of riboflavin during the reduction of X-GRL was identified by three-dimensional fluorescence analysis for the first time. The proteinase K and the electron competitor treatment tests were used to analyze the intracellular reduction mechanism of X-GRL. Moreover, the effect of external environment on the reduction mechanism of X-GRL was elucidated by the decolorization performance of MR-1 wild type and its mutants, ΔomcA/mtrC, ΔmtrA, ΔmtrB and ΔcymA, under different external pH conditions. The results indicated that X-GRL could be decolorized by MR-1 in both extracellular and intracellular spaces. The extracellular decolorization of X-GRL could be caused by Mtr respiratory pathway or the indirect reduction of riboflavin, while the intracellular decolorization might occur due to the intracellular reduction depending on CymA pathway and a NADH-dependent reduction catalyzed by intracellular azoreductases. Furthermore, the proportion of extracellular decolorization decreased, whereas that of intracellular decolorization increased as the environmental pH rose.
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Affiliation(s)
- Qian Li
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Xiaoli Feng
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xuerong Lu
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Tingting Li
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xue Han
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xiang Xiao
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xiangyang Wu
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Zhaoying Liu
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Mingfeng Yang
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yujie Feng
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.
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26
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Maniyam MN, Yaacob NS, Azman HH, Ab Ghaffar NA, Abdullah H. Immobilized cells of Rhodococcus strain UCC 0004 as source of green biocatalyst for decolourization and biodegradation of methyl orange. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.10.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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27
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Roy U, Sengupta S, Banerjee P, Das P, Bhowal A, Datta S. Assessment on the decolourization of textile dye (Reactive Yellow) using Pseudomonas sp. immobilized on fly ash: Response surface methodology optimization and toxicity evaluation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 223:185-195. [PMID: 29929074 DOI: 10.1016/j.jenvman.2018.06.026] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/07/2018] [Accepted: 06/09/2018] [Indexed: 05/27/2023]
Abstract
This study focuses on the investigation of removal of textile dye (Reactive Yellow) by a combined approach of sorption integrated with biodegradation using low cost adsorbent fly ash immobilized with Pseudomonas sp. To ensure immobilization of bacterial species on treated fly ash, fly ash with immobilized bacterial cells was characterized using Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and fluorescence microscopy. Comparative batch studies were carried out using Pseudomonas sp, fly ash and immobilized Pseudomonas sp on flyash and were observed that immobilized Pseudomonas sp on flyash acted as better decolourizing agent. The optimized pH, temperature, and immobilized adsorbent dosage for highest percentage of dye removal were observed to be pH 6, 303 K, 1.2 g/L in all the cases. At optimum condition, the highest percentage of dye removal was found to be 88.51%, 92.62% and 98.72% for sorption (flyash), biodegradation (Pseudomonas sp) and integral approach (Pseudomonas sp on flyash) respectively. Optimization of operating parameters of textile dye decolourization was done by response surface methodology (RSM) using Design Expert 7 software. Phytotoxicity evaluation with Cicer arietinum revealed that seeds exposed to untreated dye effluents showed considerably lower growth, inhibited biochemical, and enzyme parameters with compared to those exposed to treated textile effluents. Thus this immobilized inexpensive technique could be used for removal of synthetic dyes present in textile wastewater.
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Affiliation(s)
- Uttariya Roy
- Department of Chemical Engineering, Jadavpur University, 188, Raja S. C. Mullick Road, Kolkata, 700 032, West Bengal, India
| | - Shubhalakshmi Sengupta
- Department of Chemical Engineering, Jadavpur University, 188, Raja S. C. Mullick Road, Kolkata, 700 032, West Bengal, India
| | - Priya Banerjee
- Department of Environmental Science, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700 019, West Bengal, India
| | - Papita Das
- Department of Chemical Engineering, Jadavpur University, 188, Raja S. C. Mullick Road, Kolkata, 700 032, West Bengal, India.
| | - Avijit Bhowal
- Department of Chemical Engineering, Jadavpur University, 188, Raja S. C. Mullick Road, Kolkata, 700 032, West Bengal, India
| | - Siddhartha Datta
- Department of Chemical Engineering, Jadavpur University, 188, Raja S. C. Mullick Road, Kolkata, 700 032, West Bengal, India
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28
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Vikrant K, Giri BS, Raza N, Roy K, Kim KH, Rai BN, Singh RS. Recent advancements in bioremediation of dye: Current status and challenges. BIORESOURCE TECHNOLOGY 2018; 253:355-367. [PMID: 29352640 DOI: 10.1016/j.biortech.2018.01.029] [Citation(s) in RCA: 186] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/01/2018] [Accepted: 01/05/2018] [Indexed: 05/23/2023]
Abstract
The rampant industrialization and unchecked growth of modern textile production facilities coupled with the lack of proper treatment facilities have proliferated the discharge of effluents enriched with toxic, baleful, and carcinogenic pollutants including dyes, heavy metals, volatile organic compounds, odorants, and other hazardous materials. Therefore, the development of cost-effective and efficient control measures against such pollution is imperative to safeguard ecosystems and natural resources. In this regard, recent advances in biotechnology and microbiology have propelled bioremediation as a prospective alternative to traditional treatment methods. This review was organized to address bioremediation as a practical option for the treatment of dyes by evaluating its performance and typical attributes. It further highlights the current hurdles and future prospects for the abatement of dyes via biotechnology-based remediation techniques.
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Affiliation(s)
- Kumar Vikrant
- Department of Chemical Engineering and Technology, Centre of Advanced Study, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India
| | - Balendu Shekhar Giri
- Department of Chemical Engineering and Technology, Centre of Advanced Study, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India
| | - Nadeem Raza
- Government Emerson College affiliated with Bahauddin Zakariya University, Multan 60800, Pakistan; Department of Materials Science and Metallurgy, University of Cambridge, CB3 0FS, United Kingdom
| | - Kangkan Roy
- Department of Chemical Engineering and Technology, Centre of Advanced Study, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
| | - Birendra Nath Rai
- Department of Chemical Engineering and Technology, Centre of Advanced Study, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India
| | - Ram Sharan Singh
- Department of Chemical Engineering and Technology, Centre of Advanced Study, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India
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29
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Zamani H, Rakhshaee R, Garakoui SR. Two contrary roles of Fe 3O 4 nanoparticles on kinetic and thermodynamic of Paclitaxel degradation by Citrobacter amalonaticus Rashtia immobilized on sodium alginate gel beads. JOURNAL OF HAZARDOUS MATERIALS 2018; 344:566-575. [PMID: 29102639 DOI: 10.1016/j.jhazmat.2017.10.061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 10/23/2017] [Accepted: 10/30/2017] [Indexed: 06/07/2023]
Abstract
Roles of Fe3O4 nanoparticles (NPs) on biodegradation of Paclitaxel by Citrobacter amalonaticus immobilized on alginate gel beads were investigated. Limitation in substrate diffusion is the major drawback of the cell immobilization method. To overcome this problem, bacterial cells were immobilized on the gel beads containing different concentrations (5-20mg/mL) of Fe3O4 NPs and their Paclitaxel degrading potential at different temperatures was investigated using kinetic and thermodynamic modeling. Co-immobilization of bacterial cells with 5, 10 and 20mg/mL Fe3O4 NPs enhanced biodegradation efficiencies to 66%, 80% and 78%, respectively, compared to the NPs free immobilized cells (41.9%). The optimum concentration of Fe3O4 NPs (10mg/mL) had both inhibitory and accelerating effects on paclitaxel degradation depending on the incubation time and temperature. Increasing dose of Fe3O4 NPs could increase paclitaxel degradation, despite increasing of thermodynamic inhibitory factors, only when longer time and higher temperature were used. ΔG values increased about 11.2 KJ/mol at all temperatures of 285, 295 and 305K, and ΔH increased 54.4%, in comparison with the treatment without NPs. This indicates that, inclusion of Fe3O4 NPs into the immobilization gels can increase the local concentration of Paclitaxel (with OH2+ groups) and bacterial accessibility to the substrate and thus enhance biodegradation efficiency.
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Affiliation(s)
- Hojjatolah Zamani
- Department of Biology, Faculty of Science, University of Guilan, Iran.
| | - Roohan Rakhshaee
- Department of Chemistry, Faculty of Science, University of Guilan, Iran
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30
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Biosynthesis of gold nanoparticles using cell-free extracts of Magnusiomyces ingens LH-F1 for nitrophenols reduction. Bioprocess Biosyst Eng 2017; 41:359-367. [PMID: 29188359 DOI: 10.1007/s00449-017-1869-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 11/17/2017] [Indexed: 01/12/2023]
Abstract
A green and eco-friendly method for the synthesis of gold nanoparticles (AuNPs) was developed using the cell-free extracts of a yeast strain Magnusiomyces ingens LH-F1. UV-vis spectra showed a distinct absorption band at ~ 540 nm, corresponding to the surface plasmon resonance of AuNPs. Transmission electron microscopy images revealed that the shapes of AuNPs were almost spherical and pseudo-spherical. Fourier transform infrared spectroscopy and sodium dodecyl sulfate-polyacrylamide gel electrophoresis analyses suggested that some proteins containing amino- and carboxyl-groups in the cell-free extracts were absorbed on the surface of nanoparticles, which could act as reducing and capping agents for AuNPs synthesis. Furthermore, with the concentration of cell-free extracts increasing from 25 to 200 mg L-1, the average size of AuNPs decreased from 28.3 to 20.3 nm. Meanwhile, the morphology became more uniform with less irregular shapes. In addition, the as-synthesized AuNPs showed an excellent catalytic activity for nitrophenols reduction (i.e., 4-nitrophenol, 3-nitrophenol and 2-nitrophenol) in the presence of excess NaBH4. The catalytic rate constant of nitrophenols reduction was also dependent on cell-free extract concentration. The larger AuNPs synthesized by less cell-free extracts were covered with a thinner corona and showed better capacity for reducing nitrophenols. This study suggested that the as-synthesized AuNPs could be employed as efficient catalysts in reduction of organic contaminants.
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31
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Song L, Shao Y, Ning S, Tan L. Performance of a newly isolated salt-tolerant yeast strain Pichia occidentalis G1 for degrading and detoxifying azo dyes. BIORESOURCE TECHNOLOGY 2017; 233:21-29. [PMID: 28258992 DOI: 10.1016/j.biortech.2017.02.065] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/13/2017] [Accepted: 02/15/2017] [Indexed: 05/07/2023]
Abstract
A salt-tolerant yeast named G1 which could decolorize various azo dyes was recently isolated and identified as Pichia occidentalis. Systematic researches on characterization, degradation pathway, detoxification effects and enzymes analysis of this yeast were done. The results showed that the optimal metabolism and growth parameters for strain G1 were: 2.0gL-1 glucose, 0.6gL-1 ammonium sulfate, 0.08gL-1 yeast extract, 30gL-1 NaCl, 160rmin-1, 30°C and pH 5.0. More than 98% of 50mgL-1 Acid Red B (ARB) could be decolorized within 16h under the optimal conditions. Additionally, strain G1 degraded and obviously detoxified ARB through a possible pathway successively consisting of decolorization, deamination/desulfonation and TCA cycle processes. Moreover, NADH-DCIP reductase was estimated as the key reductase for decolorization and ligninases including lignin peroxidase, manganese peroxidase and laccase were important oxidoreductases for further degradation of decolorization intermediates.
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Affiliation(s)
- Li Song
- School of Life Science, Liaoning Normal University, Dalian 116081, China
| | - Yifan Shao
- School of Life Science, Liaoning Normal University, Dalian 116081, China
| | - Shuxiang Ning
- School of Life Science, Liaoning Normal University, Dalian 116081, China
| | - Liang Tan
- School of Life Science, Liaoning Normal University, Dalian 116081, China.
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32
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Upendar G, Dutta S, Bhattacharya P, Dutta A. Bioremediation of methylene blue dye using Bacillus subtilis MTCC 441. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 75:1572-1583. [PMID: 28402298 DOI: 10.2166/wst.2017.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Methylene blue (MB) commonly found in the textile industry effluent has been chosen as a model dye to investigate bioremediation using Bacillus subtilis MTCC 441. Both free cells and calcium alginate immobilized cells have been used to remove MB from the effluent. The operating variables of initial concentration of dye (20-60 mg/L), inoculum size (4-8%) and temperature (25-35 °C) have been varied judiciously during the kinetic study in a batch contactor. A maximum removal of 91.68% is obtained when 20 mg/L MB solution was inoculated with 8% inoculum and cultured for 6 h at 30 °C. Continuous removal of MB has been studied in a fixed bed contactor using immobilized cells as packing materials. Influent concentration (10-30 mg/L) was varied and breakthrough parameters have been determined. With increase in influent concentration from 10 mg/L to 30 mg/L, percentage removal of dye decreases from 72.44% to 49.62%.
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Affiliation(s)
- Ganta Upendar
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur 713209, India E-mail:
| | - Susmita Dutta
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur 713209, India E-mail:
| | - Pinaki Bhattacharya
- Department of Chemical Engineering, Heritage Institute of Technology Kolkata, Kolkata 700107, India
| | - Abhishek Dutta
- Departement Materiaalkunde, KU Leuven, KasteelparkArenberg 44 bus 2450, Heverlee-Leuven B-3001, Belgium
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Deng F, Zhang Z, Yang C, Guo C, Lu G, Dang Z. Pyrene biodegradation with layer-by-layer assembly bio-microcapsules. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 138:9-15. [PMID: 27987420 DOI: 10.1016/j.ecoenv.2016.11.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 11/23/2016] [Accepted: 11/25/2016] [Indexed: 06/06/2023]
Abstract
Biotechnology is considered as a promising technology for the removal of polycyclic aromatic hydrocarbons from the environment. Free bacteria are often sensitive to some biotic and abiotic factors in the environment to the extent that their ability to effect biodegradation of organic pollutants, such as polycyclic aromatic hydrocarbons, is hampered. Consequently, it is imperative to carry out investigations into biological systems that will obviate or aid tolerance of bacteria to harsh environmental conditions. Chitosan/alginate bio-microcapsules produced using layer-by-layer (LBL) assembly method were tested for pyrene (PYR) biodegradation under harsh environmental conditions. Morphology observation indicated that the flake bio-microcapsules could be successfully prepared through LBL assembly method. Surface analysis showed that the bio-microcapsules had large fractions of mesopores. The results of the biodegradation experiments revealed that the 95% of 10mgL-1 PYR could be removed by the bacteria encapsulated chitosan/alginate bio-microcapsules in 3 days, which was higher than that of the free bacteria (59%). Compared to the free cells, the bacteria encapsulated chitosan/alginate bio-microcapsules produced 1-6 times higher PYR biodegradation rates at a high initial PYR concentration (50mgL-1) and extremely low pH values (pH =3) or temperatures (10°C or 40°C), as well as high salt stress. The results indicated that bacteria in microcapsules treatment gained a much higher tolerance to environmental stress and LBL bio-microcapsule could be promising candidate for remediating the organic pollutants.
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Affiliation(s)
- Fucai Deng
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, China; School of Environmental and Biological Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Zhengfang Zhang
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Chen Yang
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, China.
| | - Chuling Guo
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Guining Lu
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Zhi Dang
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, China.
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Shabbir S, Faheem M, Ali N, Kerr PG, Wu Y. Evaluating role of immobilized periphyton in bioremediation of azo dye amaranth. BIORESOURCE TECHNOLOGY 2017; 225:395-401. [PMID: 27956332 DOI: 10.1016/j.biortech.2016.11.115] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study was to evaluate the bioremediation capabilities of three kinds of periphyton (i.e. epiphyton, metaphyton and epilithon) immobilized in bioreactors to decolorize and biodegrade the sulphonated azo dye, amaranth. Results showed that periphyton dominated by phyla including Cyanobacteria, Proteobacteria and Bacteroidetes. Complete removal of dye was shown by all the biofilms periphyton (epiphyton showed highest removal efficacy) over a range of initial concentrations (50-500mgL-1) within 84h at pH 7 and 30°C. Biodegradation of amaranth was confirmed through FTIR and HPLC and the biodegradation pathways were detected by GC-MS/MS analysis. The azo bonds in the amaranth were successfully broken by periphyton and amaranth was converted to non-toxic, aliphatic compounds including isobutene, acetyl acetate and ethyl acetate. The results showed the potential application of immobilized periphyton at industrial scale for the removal of azo dyes from wastewater containing azo dye amaranth.
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Affiliation(s)
- Sadaf Shabbir
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Sciences, Chinese Academy of Sciences, 71, East Beijing Road, Nanjing 210008, Jiangsu, People's Republic of China; Department of Microbiology, Quaid-i-Azam University, 3rd Avenue, 45320 Islamabad, Pakistan
| | - Muhammad Faheem
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Sciences, Chinese Academy of Sciences, 71, East Beijing Road, Nanjing 210008, Jiangsu, People's Republic of China
| | - Naeem Ali
- Department of Microbiology, Quaid-i-Azam University, 3rd Avenue, 45320 Islamabad, Pakistan
| | - Philip G Kerr
- School of Biomedical Sciences, Charles Sturt University, Boorooma St, Wagga Wagga, NSW 2678, Australia
| | - Yonghong Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Sciences, Chinese Academy of Sciences, 71, East Beijing Road, Nanjing 210008, Jiangsu, People's Republic of China.
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35
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Performance of the biological aerated filter bioaugmented by a yeast Magnusiomyces ingens LH-F1 for treatment of Acid Red B and microbial community dynamics. World J Microbiol Biotechnol 2017; 33:39. [DOI: 10.1007/s11274-017-2210-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 01/11/2017] [Indexed: 10/20/2022]
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Zhang X, Qu Y, Shen W, You S, Pei X, Li S, Wang J, Zhou J. Colorimetric response of biogenetic gold nanoparticles to mercury (II) ions. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.08.072] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ngo ACR, Devanadera MKP, Dedeles GR. Decolorization of Selected Synthetic Textile Dyes by Yeasts from Leaves and Fruit Peels. J Health Pollut 2016; 6:42-55. [PMID: 30524784 PMCID: PMC6236547 DOI: 10.5696/2156-9614-6-10.42] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
BACKGROUND Discharge of textile dyes into the environment poses a significant threat. They are poorly biodegradable and toxic due to their complex composition and aromatic structures. In the search for alternatives to physical and chemical treatments, biodegradation of synthetic dyes by various microbes is emerging as an effective and promising approach. OBJECTIVES The decolorization of synthetic dyes by yeast co-cultures and consortia from leaves and fruit peels was assessed at a 50 μg/mL dye concentration. METHODS Yeasts isolates from leaves and fruit peels were screened for potential decolorization of synthetic dyes at 25-50 μg/mL. Decolorization parameters were optimized for synergistic properties and development of yeast co-cultures and consortium. Possible decolorization reactions were initially assessed by cell immobilization, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), and Fourier transform infrared spectroscopy (FTIR) analysis. RESULTS A total of 16 organisms were isolated from rose, mango, and pineapple leaves and pineapple fruit peels. Only 4 organisms showed high decolorization of four synthetic dyes: Direct Pink B, Disperse Yellow 5G, Direct Fast Orange S, and Reactive Turquoise Blue G. The optimum condition for best decolorizers of selected dyes at 50 μg/mL were Candida guilliermondii (Y011) for Direct Pink B at pH 9, 37°C; C. dubliniensis (Y014) for Disperse Yellow 5G at pH 4, 25°C; C. guilliermondii (Y004) for Direct Fast Orange S at pH 7, 25°C, and C. famata (Y003) for Reactive Turquoise Blue G at pH 4, 35°C. None of the 4 yeast isolates showed any antagonistic activity when subjected to the lawn-spotting method for the formation of co-cultures and consortium. The best co-cultures obtained 61% decolorization of Direct Pink B, 65% decolorization of Disperse Yellow 5G, 41% decolorization of Direct Fast Orange S, and 50-51% decolorization of Reactive Turquoise Blue G. Immobilized yeast cells were active in decolorizing the dyes and SDS-PAGE analysis confirmed the presence of an extracellular protein. The results of FTIR also showed changes in the functional group of Direct Pink B, but minimal changes in the functional groups of Reactive Turquoise Blue G, indicating a different decolorization pathway. CONCLUSIONS Yeasts in co-cultures and consortia can decolorize toxic synthetic dyes through different decolorization pathways such as enzyme degradation and bioaccumulation. This technique may have a use in the treatment of wastewater systems.
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Affiliation(s)
- Anna Christina R. Ngo
- The Graduate School, University of Santo Tomas
- Research Center for the Natural and Applied Sciences, University of Santo Tomas
| | - Mark Kevin P. Devanadera
- The Graduate School, University of Santo Tomas
- Research Center for the Natural and Applied Sciences, University of Santo Tomas
| | - Gina R. Dedeles
- The Graduate School, University of Santo Tomas
- Research Center for the Natural and Applied Sciences, University of Santo Tomas
- Department of Biological Sciences, College of Science, University of Santo Tomas, España, Manila, 1015 Philippines
- Corresponding Author: Gina Rio Dedeles, Laboratory of Pure and Applied Microbiology, Research Center for the Natural and Applied Sciences, Thomas Aquinas Research Complex University of Santo Tomas, Manila, 1008 Philippines, Tel. +63-(2)-4061611 loc. 8297,
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Zhang X, Qu Y, Shen W, Wang J, Li H, Zhang Z, Li S, Zhou J. Biogenic synthesis of gold nanoparticles by yeast Magnusiomyces ingens LH-F1 for catalytic reduction of nitrophenols. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.02.033] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Tan L, He M, Song L, Fu X, Shi S. Aerobic decolorization, degradation and detoxification of azo dyes by a newly isolated salt-tolerant yeast Scheffersomyces spartinae TLHS-SF1. BIORESOURCE TECHNOLOGY 2016; 203:287-294. [PMID: 26744802 DOI: 10.1016/j.biortech.2015.12.058] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 12/15/2015] [Accepted: 12/18/2015] [Indexed: 06/05/2023]
Abstract
Isolation, identification and characterization of a salt-tolerant yeast capable of degrading and detoxifying azo dyes were investigated in this study. Possible degradation pathway of Acid Scarlet 3R was proposed through analyzing metabolic intermediates using UV-Vis and HPLC-MS methods. Furthermore, the Microtox test was performed to evaluate the acute toxicity of the dye before and after biodegradation. The results showed that a salt-tolerant yeast named TLHS-SF1 was isolated and identified as Scheffersomyces spartinae basing on 26S rDNA analysis. The optimal decolorization and growth parameters were: sucrose 2 g L(-1), (NH4)2SO4 0.6 g L(-1), yeast extract 0.08 g L(-1), NaCl ⩽ 30 g L(-1), 160 rmin(-1), 30 °C and pH 5.0-6.0. More than 90% of 80 mg L(-1) 3R could be decolorized within 16 h under the optimal conditions. 3R was possibly degraded successively through azo-reduction, deamination and desulfonation pathways, and its acute toxicity obviously decreased by strain TLHS-SF1.
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Affiliation(s)
- Liang Tan
- School of Life Science, Liaoning Normal University, Dalian 116081, China.
| | - Muyang He
- School of Life Science, Liaoning Normal University, Dalian 116081, China
| | - Li Song
- School of Life Science, Liaoning Normal University, Dalian 116081, China
| | - Xinmei Fu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Shengnan Shi
- School of Life Science, Liaoning Normal University, Dalian 116081, China
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Shanmugam BK, Mahadevan S. Metabolism and biotransformation of azo dye by bacterial consortium studied in a bioreaction calorimeter. BIORESOURCE TECHNOLOGY 2015; 196:500-508. [PMID: 26282781 DOI: 10.1016/j.biortech.2015.07.108] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 07/28/2015] [Accepted: 07/29/2015] [Indexed: 06/04/2023]
Abstract
Effluents from leather and textile industries are difficult for treatment owing to its recalcitrant nature. Since the volume of effluent generated are high, a robust and active microbial consortia is required for effective treatment. The focus in the present study is the calorimetric traceability of the metabolic behaviors of mixed microbial consortia, while it grows and degrades recalcitrant substance such as an azo dye acid blue 113. The consortium exhibited a syntrophic division of substrate and was effective in degrading dye up to 0.8g/l. Notably, it was able to degrade 93.7% of the azo dye in 12-16h whereas its monocultures required 48-72h to reach 82.1%. The products of biodegradation were analyzed and the chemical pathway substantiated using chemical thermodynamic and energy release patterns. MTT assay confirmed that emanates are eco-friendly. Heat profile pattern and bioenergetics provide fundamental data for a feasible application in commercial level.
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Affiliation(s)
- Bhuvanesh Kumar Shanmugam
- Chemical Engineering Department, Central Leather Research Institute (CLRI), Adyar, Chennai 600 020, India
| | - Surianarayanan Mahadevan
- Chemical Engineering Department, Central Leather Research Institute (CLRI), Adyar, Chennai 600 020, India.
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Kurade MB, Waghmode TR, Khandare RV, Jeon BH, Govindwar SP. Biodegradation and detoxification of textile dye Disperse Red 54 by Brevibacillus laterosporus and determination of its metabolic fate. J Biosci Bioeng 2015; 121:442-9. [PMID: 26428603 DOI: 10.1016/j.jbiosc.2015.08.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/25/2015] [Accepted: 08/28/2015] [Indexed: 10/23/2022]
Abstract
Bioremediation is one of the milestones achieved by the biotechnological innovations. It is generating superior results in waste management such as removal of textile dyes, which are considered xenobiotic compounds and recalcitrant to biodegradation. In the present bioremedial approach, Brevibacillus laterosporus was used as an effective microbial tool to decolorize disperse dye Disperse Red 54 (DR54). Under optimized conditions (pH 7, 40°C), B. laterosporus led to 100% decolorization of DR54 (at 50 mg L(-1)) within 48 h. Yeast extract and peptone, supplemented in medium enhanced the decolorization efficiency of the bacterium. During the decolorization process, activities of enzymes responsible for decolorization, such as tyrosinase, veratryl alcohol oxidase and NADH--DCIP reductase were induced by 1.32-, 1.51- and 4.37-fold, respectively. The completely different chromatographic/spectroscopic spectrum of metabolites obtained after decolorization confirmed the biodegradation of DR54 as showed by High pressure liquid chromatography, High pressure thin layer chromatography and Fourier transform infrared spectroscopy. Gas chromatography-Mass spectroscopy studies suggested the parent dye was biodegraded into simple final product, N-(1λ(3)-chlorinin-2-yl)acetamide. Phytotoxicity study suggested that the metabolites obtained after biodegradation of DR54 were non-toxic as compared to the untreated dye signifying the detoxification of the DR54 by B. laterosporus.
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Affiliation(s)
- Mayur B Kurade
- Department of Natural Resources and Environmental Engineering, Hanyang University, Hangdang dong Sungdong Gu, Seoul 133-791, South Korea; Department of Biotechnology, Shivaji University, Vidyanagar, Kolhapur 416004, MS, India
| | - Tatoba R Waghmode
- Department of Biochemistry, Shivaji University, Vidyanagar, Kolhapur 416004, MS, India; Department of Applied Life Chemistry, Institute of Agriculture and Life Sciences, Gyeongsang National University, 900 Gajwa-dong, Jinju 660-071, South Korea
| | - Rahul V Khandare
- Department of Biotechnology, Shivaji University, Vidyanagar, Kolhapur 416004, MS, India
| | - Byong-Hun Jeon
- Department of Natural Resources and Environmental Engineering, Hanyang University, Hangdang dong Sungdong Gu, Seoul 133-791, South Korea
| | - Sanjay P Govindwar
- Department of Biochemistry, Shivaji University, Vidyanagar, Kolhapur 416004, MS, India.
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Decolorization characteristics of a newly isolated salt-tolerant Bacillus sp. strain and its application for azo dye-containing wastewater in immobilized form. Appl Microbiol Biotechnol 2015; 99:9277-87. [PMID: 26175104 DOI: 10.1007/s00253-015-6798-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 06/22/2015] [Accepted: 06/24/2015] [Indexed: 10/23/2022]
Abstract
Strain CICC 23870 capable of decolorization of various azo dyes under high saline conditions was isolated from saline-alkali soil. The oxygen-insensitive azoreductase in crude extracts exhibited a wide substrate adaptively in the presence of NADH as a cofactor. The decolorization process by free cells followed first-order kinetics, with a high Methyl Orange (MO) tolerance concentration up to 100 mg l(-1) estimated by Haldane model. The average decolorization rate of free cell system was 26.30 mg g(-1) h(-1) at initial MO concentration of 32.7 mg l(-1). However, the values for the systems of immobilized cells (4 mm) in alginate, alginate and nano-TiO2, and alginate and powered activated carbon (PAC) were 6.83, 4.64, and 11.34 mg g(-1) h(-1), respectively. The effective diffusion factors in the tree different matrices were calculated by diffusion-based mathematic model. The diffusion step controls the overall decolorization rate, and the effective diffusion coefficients varied with internal structure of the bead matrices. The diffusion coefficients were increased from 4.98 × 10(-9) to 2.25 × 10(-8) cm(2) s(-1) when PAC was added, but decreased to 6.62 × 10(-10) cm(2) s(-1) when nano-TiO2 was added. The immobilized matrices could be reused for at least three cycles but with a decreased decolorization rate, possibly due to the breakage of beads at the end of each cycle, which led to the loss of immobilized bacteria.
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Mnif I, Fendri R, Ghribi D. Biosorption of Congo Red from aqueous solution by Bacillus weihenstephanensis RI12; effect of SPB1 biosurfactant addition on biodecolorization potency. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2015; 72:865-874. [PMID: 26360745 DOI: 10.2166/wst.2015.288] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bacillus weihenstephanensis RI12, isolated from hydrocarbon contaminated soil, was assessed for Congo Red bio-treatment potency. Results suggested the potential of this bacterium for use in effective treatment of Congo Red contaminated wastewaters under shaking conditions at acidic and neutral pH value. The strain could tolerate higher doses of dyes as it could decolorize up to 1,000 mg/l of Congo Red. When used as microbial surfactant to enhance Congo Red biodecolorization, Bacillus subtilis SPB1-derived lipopeptide accelerated the decolorization rate and maximized the decolorization efficiency at an optimal concentration of biosurfactant of about 0.075%. Studies ensured that Congo Red removal by this strain could be due to an adsorption phenomena. Germination potencies of tomato seeds using the treated dyes under different conditions showed the efficient biotreatment of the azo dye Congo Red especially with the addition of SPB1 biosurfactant. To conclude, the addition of SPB1 bioemulsifier reduced energy costs by reducing the effective decolorization period; the biosurfactant stimulated bacterial decolorization method may provide a highly efficient, inexpensive and time-saving procedure in the treatment of textile effluents.
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Affiliation(s)
- Inès Mnif
- National School of Engineers of Sfax, Unité "Enzymes et Bioconversion", ENIS, Université de Sfax, BP W 3038 Sfax, Tunisia and Higher Institute of Biotechnology of Sfax, Université de Sfax, Sfax, Tunisia E-mail:
| | - Raouia Fendri
- National School of Engineers of Sfax, Unité "Enzymes et Bioconversion", ENIS, Université de Sfax, BP W 3038 Sfax, Tunisia and Higher Institute of Biotechnology of Sfax, Université de Sfax, Sfax, Tunisia E-mail:
| | - Dhouha Ghribi
- National School of Engineers of Sfax, Unité "Enzymes et Bioconversion", ENIS, Université de Sfax, BP W 3038 Sfax, Tunisia and Higher Institute of Biotechnology of Sfax, Université de Sfax, Sfax, Tunisia E-mail:
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Hu J, Men J, Liu Y, Huang H, Jiao T. One-pot synthesis of Ag-modified LaMnO3–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye. RSC Adv 2015. [DOI: 10.1039/c5ra09585a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ag-modified LaMnO3–graphene nanocomposites possess excellent photocatalytic activity for Direct Green BE photodegradation and the active hole generated in Ag/LaMnO3–graphene plays a key role.
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Affiliation(s)
- Jie Hu
- State Key Laboratory of Metastable Materials Science & Technology
- Yanshan University
- Qinhuangdao
- P.R. China
- Hebei Key Laboratory of Applied Chemistry
| | - Jie Men
- Hebei Key Laboratory of Applied Chemistry
- Department of Environment and Chemistry
- Yanshan University
- Qinhuangdao
- P.R. China
| | - Yuanyuan Liu
- Hebei Key Laboratory of Applied Chemistry
- Department of Environment and Chemistry
- Yanshan University
- Qinhuangdao
- P.R. China
| | - Hao Huang
- State Key Laboratory of Metastable Materials Science & Technology
- Yanshan University
- Qinhuangdao
- P.R. China
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science & Technology
- Yanshan University
- Qinhuangdao
- P.R. China
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Intracellular azo decolorization is coupled with aerobic respiration by a Klebsiella oxytoca strain. Appl Microbiol Biotechnol 2014; 99:2431-9. [PMID: 25343980 DOI: 10.1007/s00253-014-6161-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 10/09/2014] [Accepted: 10/12/2014] [Indexed: 10/24/2022]
Abstract
Reduction of azo dye methyl red coupled with aerobic respiration by growing cultures of Klebsiella oxytoca GS-4-08 was investigated. In liquid media containing dye and 0.6 % glucose in a mineral salts base, 100 mg l(-1) of the dye are completely removed in 3 h under shaking conditions. The dye cannot be aerobically decolorized by strain GS-4-08 without extra carbon sources, indicating a co-metabolism process. Higher initial dye concentration prolonged the lag phase of the cell growth, but final cell concentrations of each batches reached a same level with range from 6.3 to 7.6 mg l(-1) after the dye adaption period. This strain showed stronger dye tolerance and decolorization ability than many reported strains. Furthermore, a new intracellular oxygen-insensitive azoreductase was isolated from this strain, and the specific activity of enzyme was 0.846 and 0.633 U mg(-1) protein in the presence of NADH and NADPH, respectively. N,N dimethyl-p-phenylenediamine and anthranilic acid were stoichiometrically released from MR dye, indicating the breakage of azo bonds accounts for the intracellular decolorization. Combining the characteristics of azoreductase, the stoichiometry of EMP, and TCA cycle, the electron transfer chain theory of aerobic respiration, and the possible mechanism of aerobic respiration coupled with azo reduction by K. oxytoca GS-4-08 are proposed. This study is expected to provide a sound theoretical basis for the development of the K. oxytoca strain in aerobic process for azo dye containing wastewaters.
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Shi S, Qu Y, Ma F, Zhou J. Bioremediation of coking wastewater containing carbazole, dibenzofuran and dibenzothiophene by immobilized naphthalene-cultivated Arthrobacter sp. W1 in magnetic gellan gum. BIORESOURCE TECHNOLOGY 2014; 166:79-86. [PMID: 24905045 DOI: 10.1016/j.biortech.2014.05.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 05/10/2014] [Accepted: 05/12/2014] [Indexed: 06/03/2023]
Abstract
In this study, the cometabolic degradation of carbazole (CA), dibenzofuran (DBF), and dibenzothiophene (DBT) by immobilized Arthrobacter sp. W1 cells pregrown with naphthalene was investigated. Four kinds of polymers were evaluated as immobilization supports for strain W1. After comparison with agar, alginate, and κ-carrageenan, gellan gum was selected as the optimal immobilization support. Furthermore, magnetic Fe₃O₄ nanoparticle was selected as most suitable nanoparticle for immobilization and the optimal concentration was 80 mg/L. The relationship between specific degradation rate and the initial concentration of CA, DBF and DBT was described well by Michaelis-Menten kinetics. The recycling experiments demonstrated that the magnetically immobilized cells coupling with activation zeolite showed highly bioremediation activity on the coking wastewater containing high concentration of phenol, naphthalene, CA, DBF and DBT during seven recycles. Toxicity assessment indicated the treatment of the coking wastewater by magnetically immobilized cells with activation zeolite led to less toxicity than untreated wastewater.
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Affiliation(s)
- Shengnan Shi
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Yuanyuan Qu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
| | - Jiti Zhou
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
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