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Isolation and Cultural Characteristics of Styrene Dimer [Endocrine Disrupter] Biodegrading Microorganism  

Saido Katsuhiko (전남대학교 환경공학과)
Publication Information
KSBB Journal / v.19, no.4, 2004 , pp. 315-320 More about this Journal
Abstract
We examined the culture conditions and degrading characteristics of styrene dimer (endocrine disrupter) using microorganism. The isolated microbe were consisted of 3 kinds of strain. The strains were identified to Pseudomonas sp. and Klebsiella pneumoniae by API 20E kit, but one was not identified. Single strain was not grown on the C-medium containing styrene dimer. However the complex strain YH3 could grow and we confirmed it by the broth color and O.D$_{660nm}$ (optical density 660 nm). The optimal culture conditions of complex strain YH3 were 35$^{\circ}C$, 1,000 ppm (v/v) of styrene dimer and pH 7.0, respectively. In tolerance test against the organic solvents, the complex strain YH3 could grow above log P=3.1, and could degrade ethyl benzene and 2,4-D, one kind of herbicide. As a result of TLC (Thin Layer Chromatography) analysis, we confirmed that the metabolite of styrene dimer was created by YH3 after 5th day, but not at control samples.
Keywords
Styrene dimer; Endocrine disrupter; biodegradability; log P; TLC analysis;
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