Efficient 2,3-butanediol production from cassava powder by a crop-biomass-utilizer, Enterobacter cloacae subsp. dissolvens SDM

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논문

Efficient 2,3-butanediol production from cassava powder by a crop-biomass-utilizer, Enterobacter cloacae subsp. dissolvens SDM

학술지

PloS one

저자명

Wang, Ailong; Xu, Youqiang; Ma, Cuiqing; Gao, Chao; Li, Lixiang; Wang, Yu; Tao, Fei; Xu, Ping

초록

Background2,3-Butanediol (BD) is considered as one of the key platform chemicals used in a variety of industrial applications. It is crucial to find an efficient sugar-utilizing strain and feasible carbon source for the economical production of BD.Methodology/Principal FindingsEfficient BD production by a newly isolated Enterobacter cloacae subsp. dissolvens SDM was studied using crop-biomass cassava powder as substrate. The culture conditions and fermentation medium for BD production were optimized. Under the optimal conditions, 78.3 g l−1 of BD was produced after 24 h in simultaneous saccharification and fermentation (SSF), with a yield of 0.42 g BD g−1 cassava powder and a specific productivity of 3.3 g l−1 h−1. A higher BD concentration (93.9 g l−1) was produced after 47 h in fed-batch SSF.Conclusions/SignificanceThe results suggest that strain SDM is a good candidate for the BD production, and cassava powder could be used as an alternative substrate for the efficient production of BD.

발행연도

2012

발행기관

Public Library of Science

라이선스

cc-by

ISSN

1932-6203

권

호

페이지

pp.e40442