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Liu C, Wen S, Li S, Tian Y, Wang L, Zhu L, Wang J, Kim YM, Wang J. Enhanced remediation of chlorpyrifos-contaminated soil by immobilized strain Bacillus H27. J Environ Sci (China) 2024; 144:172-184. [PMID: 38802229 DOI: 10.1016/j.jes.2023.07.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 05/29/2024]
Abstract
Chlorpyrifos is a pesticide widely used in agricultural production with a relatively long residual half-life in soil. Addressing the problem of residual chlorpyrifos is of universal concern. In this study, rice hull biochar was used as an immobilized carrier to prepare the immobilized strain H27 for the remediation of chlorpyrifos-contamination soil. Soil microorganisms after remediation were investigated by ecotoxicological methods. The immobilized strain H27 had the highest removal rate of chlorpyrifos when 10% bacterial solution was added to the liquid medium containing 0.075-0.109 mm diameter biochar cultured for 22 hr. This study on the removal of chlorpyrifos by immobilized strain H27 showed that the initial concentration of chlorpyrifos in solution was 25 mg/L, and the removal rate reached 97.4% after 7 days of culture. In the soil, the removal rate of the immobilized bacteria group increased throughout the experiment, which was significantly higher than that of the free bacteria and biochar treatment groups. The Biolog-ECO test, T-RFLP and RT-RCR were used to study the effects of the soil microbial community and nitrogen cycling functional genes during chlorpyrifos degradation. It was found that ICP group had the highest diversity index among the four treatment groups. The microflora of segment containing 114 bp was the dominant bacterial community, and the dominant microflora of the immobilized bacteria group was more evenly distributed. The influence of each treatment group on ammonia-oxidizing bacteria (AOB) was greater than on ammonia-oxidizing archaea (AOA). This study offers a sound scientific basis for the practical application of immobilized bacteria to reduce residual soil pesticides.
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Affiliation(s)
- Changrui Liu
- National Engineering Research Center 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, Taian 271018, China
| | - Shengfang Wen
- National Engineering Research Center 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, Taian 271018, China
| | - Shuhan Li
- National Engineering Research Center 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, Taian 271018, China
| | - Yu Tian
- National Engineering Research Center 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, Taian 271018, China
| | - Lanjun Wang
- National Engineering Research Center 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, Taian 271018, China
| | - Lusheng Zhu
- National Engineering Research Center 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, Taian 271018, China
| | - Jun Wang
- National Engineering Research Center 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, Taian 271018, China
| | - Young Mo Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seongdong-gu, Seoul 04763, Korea
| | - Jinhua Wang
- National Engineering Research Center 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, Taian 271018, China.
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Murtaza G, Ahmed Z, Valipour M, Ali I, Usman M, Iqbal R, Zulfiqar U, Rizwan M, Mahmood S, Ullah A, Arslan M, Rehman MHU, Ditta A, Tariq A. Recent trends and economic significance of modified/functionalized biochars for remediation of environmental pollutants. Sci Rep 2024; 14:217. [PMID: 38167973 PMCID: PMC10762257 DOI: 10.1038/s41598-023-50623-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024] Open
Abstract
The pollution of soil and aquatic systems by inorganic and organic chemicals has become a global concern. Economical, eco-friendly, and sustainable solutions are direly required to alleviate the deleterious effects of these chemicals to ensure human well-being and environmental sustainability. In recent decades, biochar has emerged as an efficient material encompassing huge potential to decontaminate a wide range of pollutants from soil and aquatic systems. However, the application of raw biochars for pollutant remediation is confronting a major challenge of not getting the desired decontamination results due to its specific properties. Thus, multiple functionalizing/modification techniques have been introduced to alter the physicochemical and molecular attributes of biochars to increase their efficacy in environmental remediation. This review provides a comprehensive overview of the latest advancements in developing multiple functionalized/modified biochars via biological and other physiochemical techniques. Related mechanisms and further applications of multiple modified biochar in soil and water systems remediation have been discussed and summarized. Furthermore, existing research gaps and challenges are discussed, as well as further study needs are suggested. This work epitomizes the scientific prospects for a complete understanding of employing modified biochar as an efficient candidate for the decontamination of polluted soil and water systems for regenerative development.
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Affiliation(s)
- Ghulam Murtaza
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zeeshan Ahmed
- Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China.
- Xinjiang Institute of Ecology and Geography, Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Chinese Academy of Sciences, Xinjiang, 848300, China.
| | - Mohammad Valipour
- Department of Engineering and Engineering Technology, Metropolitan State University of Denver, Denver, CO, 80217, USA
| | - Iftikhar Ali
- Center for Plant Science and Biodiversity, University of Swat, Charbagh, Pakistan
| | - Muhammad Usman
- Department of Botany, Government College University, Katcheri Road, Lahore, 54000, Punjab, Pakistan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Rashid Iqbal
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Usman Zulfiqar
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Rizwan
- School of Energy Science and Engineering, Central South University, Changsha, 410011, China
| | - Salman Mahmood
- Faculty of Economics and Management, Southwest Forestry, Kunming, Yunnan, 650224, China
| | - Abd Ullah
- Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China
- Xinjiang Institute of Ecology and Geography, Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Chinese Academy of Sciences, Xinjiang, 848300, China
| | - Muhammad Arslan
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, Bonn, Germany.
| | - Muhammad Habib Ur Rehman
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, Bonn, Germany
- Department of Seed Science and Technology, Institute of Plant Breeding and Biotechnology (IPBB), MNS-University of Agriculture, Multan, Pakistan
| | - Allah Ditta
- Department of Environmental Sciences, Shaheed Benazir Bhutto University Sheringal Dir (U), KPK, Sheringal, Pakistan.
- School of Biological Sciences, The University of Western Australia, Perth, WA, 6009, Australia.
| | - Akash Tariq
- Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China
- Xinjiang Institute of Ecology and Geography, Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Chinese Academy of Sciences, Xinjiang, 848300, China
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Yin C, Yan H, Cao Y, Gao H. Enhanced bioremediation performance of diesel-contaminated soil by immobilized composite fungi on rice husk biochar. ENVIRONMENTAL RESEARCH 2023; 226:115663. [PMID: 36907343 DOI: 10.1016/j.envres.2023.115663] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/26/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
In response to the low removal capacity and poor tolerance of fungi to diesel-contaminated soil, a novel immobilization system using biochar to enhance composite fungi was proposed. Rice husk biochar (RHB) and sodium alginate (SA) were used as immobilization matrices for composite fungi, and the adsorption system (CFI-RHB) and the encapsulation system (CFI-RHB/SA) were obtained. CFI-RHB/SA exhibited the highest diesel removal efficiency (64.10%) in high diesel-contaminated soil over a 60-day remediation period compared to the free composite fungi (42.70%) and CFI-RHB (49.13%). SEM demonstrated that the composite fungi were confirmed to be well attached to the matrix in both CFI-RHB and CFI-RHB/SA. FTIR analysis revealed the appearance of new vibration peaks in diesel-contaminated soil remediated by immobilized microorganisms, demonstrating changes in the molecular structure of diesel before and after degradation. Furthermore, CFI-RHB/SA maintains a stable removal efficiency (>60%) in higher concentrations of diesel-contaminated soil. High-throughput sequencing results indicated that Fusarium and Penicillium played a key role in the removal of diesel contaminants. Meanwhile, both dominant genera were negatively correlated with diesel concentration. The addition of exogenous fungi stimulated the enrichment of functional fungi. The insights gained from experiment and theory help to provide a new understanding of immobilization techniques of composite fungi and the evolution of fungal community structure.
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Affiliation(s)
- Chuan Yin
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Huan Yan
- Chongqing Hui Ya Environmental Protection Engineering Co. Ltd., Chongqing, 400041, China
| | - Yuancheng Cao
- Chongqing Hui Ya Environmental Protection Engineering Co. Ltd., Chongqing, 400041, China
| | - Huanfang Gao
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China.
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Zhou H, Liu Q, Jiang L, Shen Q, Chen C, Zhang C, Tang J. Enhanced remediation of oil-contaminated intertidal sediment by bacterial consortium of petroleum degraders and biosurfactant producers. CHEMOSPHERE 2023; 330:138763. [PMID: 37094722 DOI: 10.1016/j.chemosphere.2023.138763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/17/2023] [Accepted: 04/21/2023] [Indexed: 05/03/2023]
Abstract
Oil pollution in intertidal zones is an important environmental issue that has serious adverse effects on coastal ecosystems. This study investigated the efficacy of a bacterial consortium constructed from petroleum degraders and biosurfactant producers in the bioremediation of oil-polluted sediment. Inoculation of the constructed consortium significantly enhanced the removal of C8-C40n-alkanes (80.2 ± 2.8% removal efficiency) and aromatic compounds (34.4 ± 10.8% removal efficiency) within 10 weeks. The consortium played dual functions of petroleum degradation and biosurfactant production, greatly improving microbial growth and metabolic activities. Real-time quantitative polymerase chain reaction (PCR) showed that the consortium markedly increased the proportions of indigenous alkane-degrading populations (up to 3.88-times higher than that of the control treatment). Microbial community analysis demonstrated that the exogenous consortium activated the degradation functions of indigenous microflora and promoted synergistic cooperation among microorganisms. Our findings indicated that supplementation of a bacterial consortium of petroleum degraders and biosurfactant producers is a promising bioremediation strategy for oil-polluted sediments.
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Affiliation(s)
- Hanghai Zhou
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, PR China
| | - Qing Liu
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, Zhejiang, PR China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi, PR China
| | - Lijia Jiang
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, Zhejiang, PR China
| | - Qi Shen
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, PR China
| | - Chunlei Chen
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, Zhejiang, PR China
| | - Chunfang Zhang
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, Zhejiang, PR China.
| | - Jiangwu Tang
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, PR China.
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Sulbaran-Bracho Y, Orellana-Saez M, Castro-Severyn J, Galbán-Malagón C, Castro-Nallar E, Poblete-Castro I. Continuous bioreactors enable high-level bioremediation of diesel-contaminated seawater at low and mesophilic temperatures using Antarctic bacterial consortia: Pollutant analysis and microbial community composition. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 321:121139. [PMID: 36702434 DOI: 10.1016/j.envpol.2023.121139] [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: 09/24/2022] [Revised: 01/15/2023] [Accepted: 01/21/2023] [Indexed: 06/18/2023]
Abstract
In 2020, more than 21,000 tons of diesel oil were released accidently into the environment with most of it contaminating water bodies. There is an urgent need for sustainable technologies to clean up rivers and oceans to protect wildlife and human health. One solution is harnessing the power of bacterial consortia; however isolated microbes from different environments have shown low diesel bioremediation rates in seawater thus far. An outstanding question is whether Antarctic microorganisms that thrive in environments polluted with hydrocarbons exhibit better diesel degrading activities when propagated at higher temperatures than those encountered in their natural ecosystems. Here, we isolated bacterial consortia, LR-30 (30 °C) and LR-10 (10 °C), from the Antarctic rhizosphere soil of Deschampsia antarctica (Livingston Island), that used diesel oil as the only carbon substrate. We found that LR-30 and LR-10 batch bioreactors metabolized nearly the entire diesel content when the initial concentration was 10 (g/L) in seawater. Increasing the initial diesel concentration to 50 gDiesel/L, LR-30 and LR-10 bioconverted 33.4 and 31.2 gDiesel/L in 7 days, respectively. The 16S rRNA gene sequencing profiles revealed that the dominant bacterial genera of the inoculated LR-30 community were Achromobacter (50.6%), Pseudomonas (25%) and Rhodanobacter (14.9%), whereas for LR-10 were Pseudomonas (58%), Candidimonas (10.3%) and Renibacterium (7.8%). We also established continuous bioreactors for diesel biodegradation where LR-30 bioremediated diesel at an unprecedent rate of (34.4 g/L per day), while LR-10 achieved (24.5 g/L per day) at 10 °C for one month. The abundance of each bacterial genera present significantly fluctuated at some point during the diesel bioremediation process, yet Achromobacter and Pseudomonas were the most abundant member at the end of the batch and continuous bioreactors for LR-30 and LR-10, respectively.
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Affiliation(s)
- Yoelvis Sulbaran-Bracho
- Biosystems Engineering Laboratory, Department of Chemical and Bioprocess Engineering, Faculty of Engineering, Universidad de Santiago de Chile (USACH), 9170022, Santiago, Chile
| | - Matias Orellana-Saez
- Biosystems Engineering Laboratory, Department of Chemical and Bioprocess Engineering, Faculty of Engineering, Universidad de Santiago de Chile (USACH), 9170022, Santiago, Chile
| | - Juan Castro-Severyn
- Laboratorio de Microbiología Aplicada Y Extremófilos, Facultad de Ingeniería Y Ciencias Geológicas, Universidad Católica Del Norte, Antofagasta, Chile
| | - Cristóbal Galbán-Malagón
- GEMA, Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide, 5750, Huechuraba, Santiago, Chile
| | - Eduardo Castro-Nallar
- Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Campus Talca, Avda. Lircay s/n, Talca, Chile; Centro de Ecología Integrativa, Universidad de Talca, Campus Talca, Avda. Lircay s/n, Talca, Chile
| | - Ignacio Poblete-Castro
- Biosystems Engineering Laboratory, Department of Chemical and Bioprocess Engineering, Faculty of Engineering, Universidad de Santiago de Chile (USACH), 9170022, Santiago, Chile.
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Liu S, Sun R, Cai M, Kong Y, Gao Y, Zhang T, Xiao X, Qiao Y, Xue J, Huang G. Petroleum spill bioremediation by an indigenous constructed bacterial consortium in marine environments. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113769. [PMID: 35738097 DOI: 10.1016/j.ecoenv.2022.113769] [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: 01/11/2022] [Revised: 05/07/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
In the process of marine oil spill remediation, adding highly efficient oil degrading microorganisms can effectively promote oil degradation. However, in practice, the effect is far less than expected due to the inadaptability of microorganisms to the environment and their disadvantage in the competition with indigenous bacteria for nutrients. In this article, four strains of oil degrading bacteria were isolated from seawater in Jiaozhou Bay, China, where a crude oil pipeline explosion occurred seven years ago. Results of high-throughput sequencing, diesel degradation tests and surface activity tests indicated that Peseudomonas aeruginosa ZS1 was a highly efficient petroleum degrading bacterium with the ability to produce surface active substances. A diesel oil-degrading bacterial consortium (named SA) was constructed by ZS1 and another oil degrading bacteria by diesel degradation test. Degradation products analysis indicated that SA has a good ability to degrade short chain alkanes, especially n-alkanes (C10-C18). Community structure analysis showed that OTUs of Alcanivorax, Peseudomona, Ruegeria, Pseudophaeobacter, Hyphomonas and Thalassospira on genus level increased after the oil spill and remained stable throughout the recovery period. Most of these enriched microorganisms were related to known alkane and hydrocarbon degraders by the previous study. However, it is the first time to report that Pseudophaeobacter was enriched by using diesel as the sole carbon source. The results also indicated that ZS1 may have a dominant position in competition with indigenous bacteria. Oil pollution has an obvious selective effect on marine microorganisms. Although the oil degradation was promoted after SA injection, the recovery of microbial community structure took a longer time.
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Affiliation(s)
- Suxiang Liu
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China
| | - Rui Sun
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China
| | - Mengmeng Cai
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China
| | - Yue Kong
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China
| | - Yu Gao
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China; Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity, Shandong University of Science and Technology, Shandong University of Science and Technology, Qingdao 266510, China
| | - Tonghuan Zhang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266510, China
| | - Xinfeng Xiao
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China; Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity, Shandong University of Science and Technology, Shandong University of Science and Technology, Qingdao 266510, China
| | - Yanlu Qiao
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China; Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity, Shandong University of Science and Technology, Shandong University of Science and Technology, Qingdao 266510, China
| | - Jianliang Xue
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China; Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity, Shandong University of Science and Technology, Shandong University of Science and Technology, Qingdao 266510, China
| | - Guofu Huang
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang, Shandong 262700, China
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De Jesus R, Alkendi R. A minireview on the bioremediative potential of microbial enzymes as solution to emerging microplastic pollution. Front Microbiol 2022; 13:1066133. [PMID: 36938133 PMCID: PMC10018190 DOI: 10.3389/fmicb.2022.1066133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/29/2022] [Indexed: 03/06/2023] Open
Abstract
Accumulating plastics in the biosphere implicates adverse effects, raising serious concern among scientists worldwide. Plastic waste in nature disintegrates into microplastics. Because of their minute appearance, at a scale of <5 mm, microplastics easily penetrate different pristine water bodies and terrestrial niches, posing detrimental effects on flora and fauna. The potential bioremediative application of microbial enzymes is a sustainable solution for the degradation of microplastics. Studies have reported a plethora of bacterial and fungal species that can degrade synthetic plastics by excreting plastic-degrading enzymes. Identified microbial enzymes, such as IsPETase and IsMHETase from Ideonella sakaiensis 201-F6 and Thermobifida fusca cutinase (Tfc), are able to depolymerize plastic polymer chains producing ecologically harmless molecules like carbon dioxide and water. However, thermal stability and pH sensitivity are among the biochemical limitations of the plastic-degrading enzymes that affect their overall catalytic activities. The application of biotechnological approaches improves enzyme action and production. Protein-based engineering yields enzyme variants with higher enzymatic activity and temperature-stable properties, while site-directed mutagenesis using the Escherichia coli model system expresses mutant thermostable enzymes. Furthermore, microalgal chassis is a promising model system for "green" microplastic biodegradation. Hence, the bioremediative properties of microbial enzymes are genuinely encouraging for the biodegradation of synthetic microplastic polymers.
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Affiliation(s)
- Rener De Jesus
- College of Graduate Studies, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Ruwaya Alkendi
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
- *Correspondence: Ruwaya Alkendi,
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