The role of extracellular polymeric substances (EPS) in chemical-degradation of persistent organic pollutants in soil: A review.

Autor: Wei Z; Faculty of Environmental Science and Engineering, Kumming University of Science and Technology, Kumming 650500, Yunnan, China., Niu S; Faculty of Environmental Science and Engineering, Kumming University of Science and Technology, Kumming 650500, Yunnan, China., Wei Y; Faculty of Environmental Science and Engineering, Kumming University of Science and Technology, Kumming 650500, Yunnan, China., Liu Y; Faculty of Environmental Science and Engineering, Kumming University of Science and Technology, Kumming 650500, Yunnan, China. Electronic address: minipig6@163.com., Xu Y; Faculty of Environmental Science and Engineering, Kumming University of Science and Technology, Kumming 650500, Yunnan, China., Yang Y; Faculty of Environmental Science and Engineering, Kumming University of Science and Technology, Kumming 650500, Yunnan, China., Zhang P; Faculty of Environmental Science and Engineering, Kumming University of Science and Technology, Kumming 650500, Yunnan, China., Zhou Q; Faculty of Environmental Science and Engineering, Kumming University of Science and Technology, Kumming 650500, Yunnan, China., Wang JJ; School of Plant, Environment and Soil Sciences, Louisiana State University AgCenter, Baton Rouge, LA 70803, USA.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2024 Feb 20; Vol. 912, pp. 168877. Date of Electronic Publication: 2023 Nov 25.
DOI: 10.1016/j.scitotenv.2023.168877
Abstrakt: Persistent organic pollutants (POPs) in soil show high environmental risk due to their high toxicity and low biodegradability. Studies have demonstrated the degradation function of microbial extracellular polymeric substances (EPS) on POPs in various matrices. However, the degradation mechanisms and the factors that influence the process in soil have not been clearly illustrated. In this review, the characteristics of EPS were introduced and the possible mechanisms of EPS on degradation of organic pollutants (e.g., external electron transfer, photodegradation, and enzyme catalysis) were comprehensively discussed. In addition, the environmental conditions (e.g., UV, nutrients, and redox potential) that could influence the production and degradation-related active components of EPS were addressed. Moreover, the current approaches on the application of EPS in biotechnology were summarized. Further, the future perspectives of enhancement on degradation of POPs by regulating EPS were discussed. Overall, this review could provide a new thought on remediation of POPs by widely-existing EPS in soil with low-cost and minimized eco-disturbance.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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