Simultaneous consumption of cellobiose and xylose by Bacillus coagulans to circumvent glucose repression and identification of its cellobiose-assimilating operons.

ABSTRACT:

Background

The use of inedible lignocellulosic biomasses for biomanufacturing provides important environmental and economic benefits for society. Efficient co-utilization of lignocellulosic biomass-derived sugars, primarily glucose and xylose, is critical for the viability of lignocellulosic biorefineries. However, the phenomenon of glucose repression prevents co-utilization of both glucose and xylose in cellulosic hydrolysates.

Results

To circumvent glucose repression, co-utilization of cellobiose and xylose by Bacillus coagulans NL01 was investigated. During co-fermentation of cellobiose and xylose, B. coagulans NL01 simultaneously consumed the sugar mixtures and exhibited an improved lactic acid yield compared with co-fermentation of glucose and xylose. More

SUBMITTER: Zheng Z 

PROVIDER: S-EPMC6271610 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature