Effect of biodiesel-derived raw glycerol on 1,3-propanediol production by different microorganisms

Title
Effect of biodiesel-derived raw glycerol on 1,3-propanediol production by different microorganisms
Authors
문철우안재형김승욱상병인엄영순
Keywords
raw glycerol; 1,3-propanediol; fermentation; pretreatment
Issue Date
2010-05
Publisher
Applied biochemistry and biotechnology
Citation
VOL 161, NO 1-8, 502-510
Abstract
The microbial production of 1,3-propanediol (1,3-PD) from raw glycerol, a byproduct of biodiesel production, is economically and environmentally advantageous. Although direct use of raw glycerol without any pretreatment is desirable, previous studies have reported that this could cause inhibition of microbial growth. In this study, we investigated the effects of raw glycerol type, different microorganisms, and pretreatment of raw glycerol on the production of 1,3-PD. Raw glycerol from waste vegetable-oil-based biodiesel production generally caused more inhibition of 1,3-PD production and microbial growth compared to raw glycerol from soybean-oil-based biodiesel production. In addition, two raw glycerol types produced from two biodiesel manufacturers using waste vegetable oil exhibited different 1,3-PD production behavior, partially due to different amounts of methanol included in the raw glycerol from the two biodiesel manufacturers. Klebsiella strains were generally resistant to all types of raw glycerol while the growth of Clostridium strains was variably inhibited depending on the type of raw glycerol. The 1,3-PD production of the Clostridium strains using acid-pretreated raw glycerol was significantly enhanced compared to that with raw glycerol, demonstrating the feasibility of using raw glycerol for 1,3-PD production by various microorganisms.
URI
http://pubs.kist.re.kr/handle/201004/36457
ISSN
0273-2289
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KIST Publication > Article
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