Metabolism of gamma-hexachlorocyclohexane by Arthrobacter citreus strain BI-100: Identification of metabolites.
作者： Jharna Datta , Amiya K. Maiti , Deba P. Modak , Pran K. Chakrabartty , Prantosh Bhattacharyya
DOI: 10.2323/JGAM.46.59
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摘要: Growth characteristics of the aerobic bacterial strain Arthrobacter citreus BI-100 in mineral salts medium with gamma-hexachlorocyclohexane (gamma-HCH) as sole source carbon and degradation gamma-HCH by are reported. The highest yield bacteria is observed at a concentration 100 mg/L. At this concentration, entered exponential phase growth without any lag. 8 h growth, no residual HCH, but its metabolites, was detectable medium. bacterium attained stationary 48 72 h; metabolite could be detected gas chromatography. Six metabolic intermediates produced A. different periods were characterized using chromatography-mass spectrometry high-performance liquid chromatography, which furnished evidence for presence gamma-1,3,4,5,6-pentachlorocyclohexene, tetrachlorocyclohexene, trichlorocyclohexa-diene, 2-chlorophenol, phenol, catechol, among others.
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