alexa Enzymatic dehalogenation of pentachlorophenol by Pseudomonas fluorescens of the microbial community from tannery effluent.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Shah S, Thakur IS

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Abstract Four different bacterial isolates obtained from a stable bacterial consortium were capable of utilizing pentachlorophenol (PCP) as sole carbon and energy source. The consortium was developed by continuous enrichment in the chemostat. The degradation of PCP by bacterial strain was preceded through an oxidative route as indicated by accumulation of tetrachloro-rho-hydroquinone and dichlorohydroquinone as determined by high performance liquid chromatography (HPLC). Among the four isolates, Pseudomonas fluorescens exhibited maximum degradation capability and enzyme production. PCP-monooxygenase enzyme was extracted from culture extract and fractionated by DEAE-cellulose ion exchange chromatography. The molecular weight of the enzyme, purified from Pseudomonas fluorescens, determined by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and gel filtration chromatography was found to be 24000 Da. This article was published in Curr Microbiol and referenced in Journal of Bioremediation & Biodegradation

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