fulltext.study @t Gmail

Cometabolic degradation of chlorophenols by a strain of Burkholderia in fed-batch culture

Paper ID Volume ID Publish Year Pages File Format Full-Text
18209 42714 2006 4 PDF Available
Title
Cometabolic degradation of chlorophenols by a strain of Burkholderia in fed-batch culture
Abstract

This work deals with the study of mono and dichlorophenols degradation by a strain of Burkholderia isolated from the Santa Alejandrina marsh, Minatitlán, Veracruz, México. This strain also degrades benzene, toluene and xylene and was identified as the N2-fixing bacteria Burkholderia tropicalis. In addition, the cometabolic degradation of 2-chlorophenol (2-CP), 4-chlorophenol (4-CP), 2,4-dichlorophenol (2,4-DCP) and 2,6-dichlorophenol (2,6-DCP) was evaluated in batch and fed-batch cultures, using phenol as the primary substrate. This bacterial strain was unable to degrade the highly substituted chlorophenols 2,4,5-TCP, 2,4,6-TCP and pentachlorophenol.Except for 4-CP, the cometabolic degradation of chlorophenols in batch culture was slow and inefficient, but when B. tropicalis was cultivated in fed-batch system, the removal efficiencies obtained were 93% for 2-CP, 95% for 2,6-DCP, 96% for 2,4-DCP and 100% for 4-CP. However, low cell growth yields were obtained in both batch and fed-batch cultures. This could be attributed to the uncoupling action of the aromatic compounds involved and, except for 2,6 DCP, to the accumulation of metabolic by-products.

Keywords
Biodegradation; Biotransformation; Burkholderia tropicalis; Chlorophenol; Cometabolism; Fed-batch
First Page Preview
Cometabolic degradation of chlorophenols by a strain of Burkholderia in fed-batch culture
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 40, Issue 1, 6 December 2006, Pages 57–60
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us