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Production of poly-β-hydroxybutyrate (PHB) by Vibrio spp. isolated from marine environment

Paper ID Volume ID Publish Year Pages File Format Full-Text
24897 43544 2007 5 PDF Available
Title
Production of poly-β-hydroxybutyrate (PHB) by Vibrio spp. isolated from marine environment
Abstract

Bacteria isolated from marine sediments were screened for their ability to accumulate polyhydroxyalkanoates. Among the isolates, four Vibrio spp. (strain M11, M14, M20 and M31) were studied in detail. All synthesized intracellular lipid inclusions during growth on diverse carbon sources including acetate, glycerol, succinate, glucose and sucrose. The inclusions were identified to be poly-β-hydroxybutyrate (PHB) using gas chromatography and nuclear magnetic resonance analysis. No other type of polyhydroxyalkanoates (PHAs) was found to be accumulated by these marine isolates, suggesting that the diversity of PHAs produced in marine environments may be not as versatile as found in other environments. Strain M11 accumulated PHB in concentrations as high as 41% of cell dry weight when grown in medium containing 4% of sodium chloride. One of the Vibrio spp. was identified to be closely related to Vibrio natriegens (98% identity) by partial 16S rDNA sequence homology. V. natriegens has the shortest generation time (9.8 min) of any bacterium and this characteristic may be an exploitable trait for the industrial production of PHB.

Keywords
Poly-β-hydroxybutyrate; PHB; Marine microorganisms; Vibrio spp
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Production of poly-β-hydroxybutyrate (PHB) by Vibrio spp. isolated from marine environment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 132, Issue 3, 1 November 2007, Pages 259–263
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