Biodegradation of Decabromodiphenyl Ether (BDE-209) by Crude Enzyme Extract from Pseudomonas aeruginosa
| Autor: | Jingrui Li, Li-Na Qiu, Fukai Li, Ai-Jun Gong, Yu Liu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Health
Toxicology and Mutagenesis biodegradation mechanism lcsh:Medicine medicine.disease_cause biodegradation Article Decabromodiphenyl ether Protein content Hydroxylation BDE-209 chemistry.chemical_compound Polybrominated diphenyl ethers Halogenated Diphenyl Ethers medicine Environmental Restoration and Remediation Flame Retardants chemistry.chemical_classification Chromatography Pseudomonas aeruginosa lcsh:R Public Health Environmental and Occupational Health Biodegradation Biodegradation Environmental Enzyme chemistry Degradation (geology) Environmental Pollutants crude enzyme extract |
| Zdroj: | International Journal of Environmental Research and Public Health, Vol 12, Iss 9, Pp 11829-11847 (2015) International Journal of Environmental Research and Public Health Volume 12 Issue 9 Pages 11829-11847 |
| ISSN: | 1660-4601 |
| Popis: | The biodegradation effect and mechanism of decabromodiphenyl ether (BDE-209) by crude enzyme extract from Pseudomonas aeruginosa were investigated. The results demonstrated that crude enzyme extract exhibited obviously higher degradation efficiency and shorter biodegradation time than Pseudomonas aeruginosa itself. Under the optimum conditions of pH 9.0, 35 °C and protein content of 2000 mg/L, 92.77% of the initial BDE-209 (20 mg/L) was degraded after 5 h. A BDE-209 biodegradation pathway was proposed on the basis of the biodegradation products identified by GC-MS analysis. The biodegradation mechanism showed that crude enzyme extract degraded BDE-209 into lower brominated PBDEs and OH-PBDEs through debromination and hydroxylation of the aromatic rings. |
| Databáze: | OpenAIRE |
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