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Efficient production of acetoin by the newly isolated Bacillus licheniformis strain MEL09

Paper ID Volume ID Publish Year Pages File Format Full-Text
35403 45088 2011 5 PDF Available
Title
Efficient production of acetoin by the newly isolated Bacillus licheniformis strain MEL09
Abstract

In this study, a new bacterial strain MEL09, which produces acetoin at high concentrations, was isolated from solid cultures of traditional Chinese vinegar. Based on physiological and biochemical characteristics as well as the 16S rDNA gene sequence, strain MEL09 was identified as Bacillus licheniformis. To improve acetoin production by B. licheniformis MEL09, medium composition and culture conditions were optimized by varying one factor at a time and using orthogonal array tests. Under these optimized conditions, the maximum acetoin concentration achieved was 41.26 g l−1, with 41.26% glucose conversion efficiency (84.39% of theoretical glucose conversion efficiency). This increase is 84.86% over the initial condition and is, to our knowledge, the highest acetoin level ever reported using fermentation methods.

Keywords
Bacillus licheniformis; Isolation; Identification; Acetoin; Optimization
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Efficient production of acetoin by the newly isolated Bacillus licheniformis strain MEL09
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 46, Issue 1, January 2011, Pages 390–394
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
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