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Isolation and characterization of a lipid-degrading bacterium and its application to lipid-containing wastewater treatment

Paper ID Volume ID Publish Year Pages File Format Full-Text
22278 43265 2007 6 PDF Available
Title
Isolation and characterization of a lipid-degrading bacterium and its application to lipid-containing wastewater treatment
Abstract

To construct an efficient lipid-containing wastewater treatment system, microorganisms that degrade lipids efficiently were isolated from various environmental sources. Strain DW2-1 showed the highest rate of degradation of 1% (w/v) salad oil among the isolated strains. Strain DW2-1 was identified as Burkholderia sp. and designated Burkholderia sp. DW2-1. The rate of degradation of salad oil, olive oil, sesame oil, and beef tallow by strain DW2-1 were 96.7%, 92.3%, 90.1% and 77.4%, respectively, during a 48-h cultivation. Strain DW2-1 grew well in a synthetic wastewater medium (>1×1010 colony forming unit [CFU]/ml) between 20°C and 38°C, and its rate of degradation of salad oil was above 90% after a 48-h cultivation. The lipase and biosurfactant (BSF) activities of strain DW2-1 after a 48-h cultivation were 1720 U/l and 480 U/ml, respectively. In continuous cultures for lipid-containing wastewater treatment, DW2-1 was stably maintained and degraded more than 90% of salad oil during a 7-d cultivation.

Keywords
lipid degradation; Burkholderia sp.; continuous cultivation; wastewater treatmentBSF, biosurfactant; DGGE, denaturing gradient gel electrophoresis; PCR, polymerase chain reaction; TLC, thin layer chromatography
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Isolation and characterization of a lipid-degrading bacterium and its application to lipid-containing wastewater treatment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 103, Issue 4, April 2007, Pages 325–330
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
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