Aerobic BTEX biodegradation increases yield of perfluoroalkyl carboxylic acids from biotransformation of a polyfluoroalkyl surfactant, 6:2 FtTAoS
Open accessAbstract
The presence of BTEX in AFFF-impacted soils increased the yield of terminal transformation products from polyfluorinated surfactant 6:2 FtTAoS. Aromatic oxygenases are likely responsible for direct oxidation of the thioether moiety.
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Recently, FtTAoS biodegradation and transformation to PFCAs were found to be enhanced by enriching AFFF-contaminated media with benzene, toluene, ethylbenzene, and o-xylene (BTEX) compounds in landfill leachate.
“Recently, FtTAoS biodegradation and transformation to PFCAs were found to be enhanced by enriching AFFF- contaminated media with benzene, toluene, ethylbenzene, and o-xylene (BTEX) compounds in landfill leachate (Olivares et al., 2022).”
From A review of microbial degradation of per- and polyfluoroalkyl substances (PFAS): Biotransformation routes and enzymes (2023) · cites this paper as Olivares et al., 2022
The Abstract reports greater PFCA production with BTEX, but says BTEX-degrading microorganisms did not increase the rate of 6:2 FtTAoS removal. The methods passage describing the enrichment microcosms (lines 139–146) identifies AFFF-impacted surficial solids, not landfill leachate. Thus the increased PFCA yield is supported, but enhanced FtTAoS biodegradation and the landfill-leachate setting are not. (LLM, conf=0.90)
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- Authors
- Olivares, C. I., Yi, S., Cook, E. K., Choi, Y. J., Montagnolli, R., Byrne, A., Higgins, C. P., Sedlak, D. L., & Alvarez-Cohen, L.
- Affiliations
- University of California, Irvine (US)
- University of Auckland (NZ)
- University of California, Berkeley (US)
- Colorado School of Mines (US)
- Civil & Environmental Engineering, University of California, Berkeley, CA, USA
- ORCID
- Venue
- Environmental Science: Processes & Impacts
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2022
- Volume
- 24
- Issue
- 3
- Pages
- 439-446
- ISSN
- 2050-7887 (ISSN-L)
- 2050-7895
- OpenAlex
- W4210571963
- Cited by
- 30
- References
- 30
- Citations by year
- 2026: 5 · 2025: 8 · 2024: 10 · 2023: 1 · 2022: 6
- FWCI
- 2.22
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Environmental Science Processes & Impacts (publishedVersion)
- PubMed (publishedVersion)
- ResearchSpace (University of Auckland) (submittedVersion)
- Funders
- Strategic Environmental Research and Development Program (ER-2128, ER-2715, ER-2720)
- Topics
- Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
- Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
- Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
- Keywords
- perfluorinated carboxylic acids, BTEX biodegradation, biotransformation, toluene dioxygenase, thioether oxidation, bioremediation
- MeSH terms
- Biodegradation, Environmental, Biotransformation, Carboxylic Acids, Fluorocarbons, Sulfides, Surface-Active Agents, Water Pollutants, Chemical
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