Environmental and Toxicology Management (ETM)
Vol. 2 No. 1 (2022): Waste management and environmental remediation

Biodegradation of an antimicrobial compound triclosan under sulfate reducing condition

Raj Boopathy (Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA)
Jacob Cortez (Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA)



Article Info

Publish Date
30 Apr 2022

Abstract

Triclosan is an antibacterial and antifungal agent that is present in many detergents and surgical cleaning treatment products. This antimicrobial compound is discharged from households and collected at the local sewage treatment plant. Because triclosan inhibits phospholipid biosynthesis, it affects the microbial population that perform waste degradation. Sewage treatment plants are the major reservoir of triclosan as the wastewater from various households are discharged and treated in the local sewage treatment plant. This study was conducted to determine whether triclosan degradation occurs in the anaerobic digester of the Thibodaux Sewage Treatment Plant. Bacterial enrichment cultures were developed under various electron acceptor conditions including nitrate-reducing, sulfate-reducing, and mixed electron acceptor condition. The results showed the bacterial consortia developed under various conditions were not inhibited by 100 ppm of triclosan. More than 96% of triclosan was removed in both co-metabolic and triclosan as the sole carbon source conditions under sulfate-reducing condition. The molecular analysis of the consortium showed wide biodiversity of bacteria in the consortium.

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Journal Info

Abbrev

etm

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Environmental Science Public Health

Description

Environmental and Toxicology Management is a peer-reviewed journal for the publication of original articles, short communication, review articles, and case studies on the fundamentals, applications, and management of environmental and toxicology. Environmental and Toxicology Management is published ...