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Journal article
Degradation of Brominated Organic Compounds (Flame Retardants) by a Four-Strain Consortium Isolated from Contaminated Groundwater
Applied sciences, v 11(14), p6263
01 Jul 2021
Abstract
Biodegradation of pollutants in the environment is directly affected by microbial communities and pollutant mixture at the site. Lab experiments using bacterial consortia and substrate mixtures are required to increase our understanding of these processes in the environment. One of the deficiencies of working with environmental cultures is the inability to culture and identify the active strains while knowing they are representative of the original environment. In the present study, we tested the aerobic microbial degradation of two brominated flame retardants, tribromo-neopentyl alcohol (TBNPA) and dibromo neopentyl glycol (DBNPG), by an assembled bacterial consortium of four strains. The four strains were isolated and plate-cultured from a consortium enriched from the impacted groundwater underlying the Neot Hovav industrial area (Negev, Israel), in which TBNPA and DBNPG are abundant pollutants. Total degradation (3-7 days) occurred only when the four-strain consortium was incubated together (25 degrees C; pH -7.2) with an additional carbon source, as both compounds were not utilized as such. Bacterial growth was found to be the limiting factor. A dual carbon-bromine isotope analysis was used to corroborate the claim that the isolated strains were responsible for the degradation in the original enriched consortium, thus ensuring that the isolated four-strain microbial consortium is representative of the actual environmental enrichment.
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Details
- Title
- Degradation of Brominated Organic Compounds (Flame Retardants) by a Four-Strain Consortium Isolated from Contaminated Groundwater
- Creators
- Noa Balaban - Ben Gurion Univ Negev, Zuckerberg Inst Water Res ZIWR, Jacob Blaustein Inst Desert Res, Dept Environm Hydrol & Microbiol EHM, Sede Boger Campus, IL-8499000 Midreshet Ben Gurion, IsraelFaina Gelman - Geol Survey Israel, Yeshayahu Leibowitz 32, IL-9692100 Jerusalem, IsraelAlicia A. Taylor - Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USASharon L. Walker - Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USAAnat Bernstein - Ben Gurion Univ Negev, Zuckerberg Inst Water Res ZIWR, Jacob Blaustein Inst Desert Res, Dept Environm Hydrol & Microbiol EHM, Sede Boger Campus, IL-8499000 Midreshet Ben Gurion, IsraelZeev Ronen - Ben Gurion Univ Negev, Zuckerberg Inst Water Res ZIWR, Jacob Blaustein Inst Desert Res, Dept Environm Hydrol & Microbiol EHM, Sede Boger Campus, IL-8499000 Midreshet Ben Gurion, Israel
- Publication Details
- Applied sciences, v 11(14), p6263
- Publisher
- Mdpi
- Number of pages
- 12
- Grant note
- 2010-51160-21070 / United States Department of Agriculture's consortium T32 ES018827 / National Research Service Award Institutional Training Grant 1482/16 / Israel Science Foundation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- College of Engineering
- Web of Science ID
- WOS:000675946500001
- Scopus ID
- 2-s2.0-85110121610
- Other Identifier
- 991019168094904721
InCites Highlights
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Engineering, Multidisciplinary
- Materials Science, Multidisciplinary
- Physics, Applied