文献类型：期刊文献

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

作者：Zhang, Hongsen[1];Zhang, Jian[1];Bao, Jie[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：203

起止页码：211

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20155201731604);WOS:【SCI-EXPANDED(收录号:WOS:000368016000028)】；

基金：This research was supported by Natural Science Foundation of China (2136048) and the National High-Tech Program of China (2012AA022301/2014AA021901).

语种：英文

外文关键词：Gluconic acid; Lignocellulose; Aspergillus niger; Inhibitor tolerance; Cement additive

摘要：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 76.67 g/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. (C) 2015 Elsevier Ltd. All rights reserved.