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Open AccessReview

Using Low Molecular Weight Organic Acids to Enhance Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Current Understanding and Future Perspectives

by 1,2,3, 2, 4,5, 2 and 2,*
1
College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
2
College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
3
Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China
4
Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
5
DWI-Leibniz Institut für Inateraktive Materialien, Forckenbeckstraße 50, 52056 Aachen, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Zhongbing Chen
Water 2021, 13(4), 446; https://doi.org/10.3390/w13040446
Received: 30 December 2020 / Revised: 4 February 2021 / Accepted: 5 February 2021 / Published: 9 February 2021
(This article belongs to the Special Issue Pollutants Removal from Wastewater Using Constructed Wetlands)
Polycyclic aromatic hydrocarbons (PAHs), an organic pollutant with persistence and carcinogenicity, are universally present in the environment and food processing. Biological approaches toward remediating PAHs-contaminated sites are a viable, economical, and environmentally friendly alternative compared to conventional physical and/or chemical remediation methods. Recently, various strategies relating to low molecular weight organic acids (LMWOAs) have been developed to enhance the microbial degradation of PAHs. However, the remaining challenge is to reveal the role of LMWOAs in the PAHs biodegradation process, and the latter limits researchers from expanding the application scope of biodegradation. In this mini-review, we summarized the current understanding of the impact of LMWOAs on (1) the physicochemical behavior of PAHs in the extracellular environment; (2) the interactions between PAHs and the microbial cell surface; and (3) the intracellular metabolization of PAHs. Future perspectives for this field are discussed in this review as well. View Full-Text
Keywords: low molecular weight organic acids; polycyclic aromatic hydrocarbons; bioremediation; extracellular environment; cell surface; intracellular metabolization low molecular weight organic acids; polycyclic aromatic hydrocarbons; bioremediation; extracellular environment; cell surface; intracellular metabolization
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MDPI and ACS Style

Zhang, L.; Qiao, J.; Cui, H.; Wang, M.; Li, X. Using Low Molecular Weight Organic Acids to Enhance Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Current Understanding and Future Perspectives. Water 2021, 13, 446. https://doi.org/10.3390/w13040446

AMA Style

Zhang L, Qiao J, Cui H, Wang M, Li X. Using Low Molecular Weight Organic Acids to Enhance Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Current Understanding and Future Perspectives. Water. 2021; 13(4):446. https://doi.org/10.3390/w13040446

Chicago/Turabian Style

Zhang, Lei; Qiao, Jie; Cui, Haiyang; Wang, Minghui; Li, Xiujuan. 2021. "Using Low Molecular Weight Organic Acids to Enhance Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Current Understanding and Future Perspectives" Water 13, no. 4: 446. https://doi.org/10.3390/w13040446

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