文献类型：期刊文献

英文题名：Simultaneous saccharification and fermentation of cassava to succinic acid by Escherichia coli NZN111

作者：Chen, Cuixia[1];Ding, Shaopeng[1];Wang, Dezheng[1];Li, Zhimin[1];Ye, Qin[1]

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

年份：2014

卷号：163

起止页码：100

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20141917695689);WOS:【SCI-EXPANDED(收录号:WOS:000337875400014)】；

基金：This study was supported by the National High Technology Research and Development Program of China (Grant Nos. 2011AA02A203, 2012AA022104 & 2012AA021205), the Fundamental Research Funds for the Central Universities (Grant Nos. 222201313007 & 222201314048), the National Special Fund for State Key Laboratory of Bioreactor Engineering (No. 2060204).

语种：英文

外文关键词：Succinic acid; Simultaneous saccharification and fermentation; Cassava; Escherichia coli NZN111

摘要：In this study, the production of succinic acid from cassava starch and raw cassava instead of glucose by Escherichia coli NZN111 was investigated. During the two-stage fermentation, simultaneous saccharification and fermentation (SSF) was applied in the anaerobic stage. The results showed that both the productivity and specific productivity in the process conducted at 40 degrees C were higher than those in the cultivation conducted at 37 degrees C. The yield of succinic acid based on the amount of added starch reached the highest level 0.86 g/g and cassava starch was almost totally hydrolyzed in the SSF process. With the improved cell density, 127.13 g/L of succinic acid was obtained. When the liquefied crude cassava powder was used directly in SSF, 106.17 g/L of succinic acid was formed. The result showed that crude cassava powder could be another cheap raw material for succinic acid formation. (c) 2014 Elsevier Ltd. All rights reserved.