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Poly(β-hydroxybutyrate) production by a moderate halophile, Halomonas boliviensis LC1

Paper ID Volume ID Publish Year Pages File Format Full-Text
18572 42726 2006 7 PDF Available
Title
Poly(β-hydroxybutyrate) production by a moderate halophile, Halomonas boliviensis LC1
Abstract

The moderate halophile Halomonas boliviensis, isolated from a Bolivian saline soil sample, was able to accumulate poly(β-hydroxybutyrate) (PHB) when grown under conditions of nutrient limitation and excess carbon source. The concentration of sodium chloride in the medium influenced the cell-growth, -size, and rate of PHB accumulation. Cultivation in shake flasks led to a PHB accumulation of about 54 wt.% with respect to cell dry weight at 4.5% (w/v) NaCl in a medium with butyric acid and sodium acetate as carbon sources. The production of PHB was substantially improved to a maximum value of 88 wt.% during cultivation under controlled conditions of pH and oxygen concentration in a fermentor. The use of glucose and sucrose, respectively, as carbon source could also lead to the production of PHB at an average level of 55 wt.%.

Keywords
Halomonas boliviensis; Moderate halophile; Poly(β-hydroxybutyrate) (PHB) accumulation; Carbon source
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 38, Issues 1–2, 3 January 2006, Pages 148–154
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
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Full-text PDF Download
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