BioChem - DOS

Effective multiple stages continuous acetone-butanol-ethanol fermentation by immobilized bioreactors: Making full use of fresh corn stalk

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

Chang, Z.; Cai, D.; Wang, Y.; Chen, C.; Fu, C.; Wang, G.; Qin, P.; Wang, Z.; Tan, T.

In order to make full use of the fresh corn stalk, the sugar containing juice was used as the sole substrate for acetone-butanol-ethanol production without any nutrients supplement, and the bagasse after squeezing the juice was used as the immobilized carrier. A total 21.34g/L of ABE was produced in batch cells immobilization system with ABE yield of 0.35g/g. A continuous fermentation containing three stages with immobilized cells was conducted and the effect of dilution rate on fermentation was investigated. As a result, the productivity and ABE solvents concentration reached 0.80g/Lh and 19.93g/L, respectively, when the dilution rate in each stage was 0.12/h (corresponding to a dilution rate of 0.04/h in the whole system). And the long-term operation indicated the continuous multiple stages ABE fermentation process had good stability and showed the great potential in future industrial applications.

2016

Elsevier Applied Science

0960-8524

205

pp.82-89

10.1016/j.biortech.2016.01.034

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART74931813

ABE fermentation; Corn stalk juice; Corn stalk bagasse; Cell immobilization