文献类型：期刊文献

英文题名：Development of succinic acid production from corncob hydrolysate by Actinobacillus succinogenes

作者：Yu, Jie[1,2];Li, Zhimin[1];Ye, Qin[1];Yang, Yong[2];Chen, Shulin[2]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Inst Microbiol, Beijing, Peoples R China

年份：2010

卷号：37

期号：10

起止页码：1033

外文期刊名：JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY

收录：;EI(收录号：20242616549007);WOS:【SCI-EXPANDED(收录号:WOS:000282053000003)】；

基金：This study was supported by the National Basic Research Program of China-'973' Program 2007CB714304. We thank the Institute of Microbiology, Chinese Academy of Sciences, for helping with this experiment.

语种：英文

外文关键词：Actinobacillus succinogenes; Succinic acid; Corncob hydrolysate; Xylose; Optimization

摘要：Succinic acid is one of the most important platform chemicals since it has great potential in industrial applications. In this study, corncob hydrolysate was used for succinic acid production. After diluted acid treatment, xylose was released from hemicellulose as the predominant monosaccharide in the hydrolysate, whereas glucose was released very little and most was retained as cellulose in the raw material. Without any detoxification, corncob hydrolysate was used directly as the carbon source in the fermentation. Actinobacillus succinogenes could utilize the sugars in the hydrolysate to produce succinic acid efficiently. Through medium optimization, yeast extract was selected as the nitrogen source and MgCO3 was used to control pH. A total of 23.64 g/l of succinic acid was produced with a yield of 0.58 g/g based on consumed sugar, indicating that the waste corncob residue can be used to produce value-added chemicals practically.