Anaerobic degradation of toluene and o-xylene by a methanogenic consortium
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چکیده
منابع مشابه
Anaerobic degradation of toluene and o-xylene by a methanogenic consortium.
Toluene and o-xylene were completely mineralized to stoichiometric amounts of carbon dioxide, methane, and biomass by aquifer-derived microorganisms under strictly anaerobic conditions. The source of the inoculum was creosote-contaminated sediment from Pensacola, Fla. The adaptation periods before the onset of degradation were long (100 to 120 days for toluene degradation and 200 to 255 days fo...
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Monoaromatic hydrocarbons such as benzene, toluene, ethylbenzene, and xylene (BTEX) are widespread contaminants in groundwater. We examined the anaerobic degradation of BTEX compounds with amorphous ferric oxide as electron acceptor. Successful enrichment cultures were obtained for all BTEX substrates both in the presence and absence of AQDS (9,10-anthraquinone-2,6-disulfonic acid). The electro...
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Recombinant strains of Escherichia coli constitutively expressing toluene-o-xylene monooxygenase (ToMO) of Pseudomonas stutzeri OX1 and toluene o-monooxygenase (TOM) of Burkholderia cepacia G4 were investigated for their ability to oxidize trichloroethylene (TCE), 1,1-dichloroethylene (1,1-DCE), cis-1,2-dichloroethylene (cis-DCE), trans-1,2-dichloroethylene (trans-DCE), vinyl chloride (VC), and...
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Toluene and the three isomers of xylene were completely mineralized to CO2 and biomass by aquifer-derived microorganisms under strictly anaerobic conditions. The source of the inoculum was gasoline-contaminated sediment from Seal Beach, Calif. Evidence confirming that sulfate was the terminal electron acceptor is presented. Benzene and ethylbenzene were not degraded under the experimental condi...
متن کاملCarboxylation of o-cresol by an anaerobic consortium under methanogenic conditions.
The metabolism of o-cresol under methanogenic conditions by an anaerobic consortium known to carboxylate phenol to benzoate was investigated. After incubation with the consortium at 29 degrees C for 59 days, o-cresol was transformed to 3-methylbenzoic acid, which was not further metabolized by the consortium. Proteose peptone in the culture medium was essential for the transformation of o-creso...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1994
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.60.1.313-322.1994