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Assimilative and co-metabolic degradation of chloral hydrate by bacteria and their bioremediation potential

Paper ID Volume ID Publish Year Pages File Format Full-Text
20896 43196 2011 6 PDF Available
Title
Assimilative and co-metabolic degradation of chloral hydrate by bacteria and their bioremediation potential
Abstract

Although the bacterial degradation of chloral hydrate (CH) has been recognized for several decades, its degradation pathway by assimilation has not been demonstrated. In this paper, we report the isolation of the LF54 bacterial strain, which utilizes CH as its sole carbon and energy source. LF54 converted CH into trichloroethanol (TCAol), which was dehalogenated to dichloroethanol (DCAol), and CO2 was detected as the end product. Another strain that we isolated, RS20, co-metabolized CH into TCAol. Our 16S rRNA gene sequencing and taxonomic analyses revealed that the LF54 and RS20 strains belong to the Pseudomonas and Arthrobacter genera, respectively. When the two strains were inoculated into soil microcosms, both degraded 0.3 mM CH to undetectable levels (< 0.01 mM) within 5 days. These results suggest that LF54 and RS20 could be used in the bioremediation of CH-contaminated environments.

Keywords
Chloral hydrate; Biodegradation; Soil microcosm; Assimilative; Co-metabolic
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 111, Issue 4, April 2011, Pages 448–453
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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Any Questions? feel free to contact us