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Published on: May 10, 2013
Screening and Separation of Microorganisms Degrading PCBs
Bokvajova1, Burkhard, Demnerova
1Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Czech Republic.
Abstract:
We performed an assay to assess the polychlorinated biphenyl (PCB) degradative capability and congener specificity of aerobic microorganisms. Microbial strains were isolated and separated from different types of soils in the Czech Republic, and their PCB-degrading abilities were compared. An industrial mixture of PCB congeners ranging from dichloro- to hexachlorobiphenyl and representing various chlorination patterns was used throughout. The PCB degradative ability of microorganisms was determined by gas chromatography after 7 days of incubation. The degree of degradation was found to depend on the number of chlorine substituents.
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