BioChem - DOS

High titer gluconic acid fermentation by Aspergillus niger from dry dilute acid pretreated corn stover without detoxification

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

Zhang, H.; Zhang, J.; Bao, J.

This study reported a high titer gluconic acid fermentation using dry dilute acid pretreated corn stover (DDAP) hydrolysate without detoxification. The selected fermenting strain Aspergillus niger SIIM M276 was capable of inhibitor degradation thus no detoxification on pretreated corn stover was required. Parameters of gluconic acid fermentation in corn stover hydrolysate were optimized in flasks and in fermentors to achieve 76.67g/L gluconic acid with overall yield of 94.91%. The sodium gluconate obtained from corn stover was used as additive for extending setting time of cement mortar and similar function was obtained with starch based sodium gluconate. This study provided the first high titer gluconic acid production from lignocellulosic feedstock with potential of industrial applications.

2016

Elsevier Applied Science

0960-8524

203

pp.211-219

10.1016/j.biortech.2015.12.042

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART74780578

Gluconic acid; Lignocellulose; Aspergillus niger; Inhibitor tolerance; Cement additive