期刊
BIORESOURCE TECHNOLOGY
卷 211, 期 -, 页码 307-312出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.03.036
关键词
Duckweed; Succinic acid; Actinobacillus succinogenes; Corn steep liquor powder; Pretreatment
资金
- Natural Science Foundation of Guangxi Province [2013GXNSFBA019102, 2014GXNSFAA 118102]
- Science foundation of Guangxi Academy of Science [13YJ22SW]
- BaGui Scholars Program Foundation of Guangxi Province, China
Duckweed is potentially an ideal succinic acid (SA) feedstock due to its high proportion of starch and low lignin content. Pretreatment methods, substrate content and nitrogen source were investigated to enhance the bioconversion of duckweed to SA and to reduce the costs of production. Results showed that acid hydrolysis was an effective pretreatment method because of its high SA yield. The optimum substrate concentration was 140 g/L. The optimum substrate concentration was 140 g/L. Corn steep liquor powder could be considered a feasible and inexpensive alternative to yeast extract as a nitrogen source. Approximately 57.85 g/L of SA was produced when batch fermentation was conducted in a 1.3 L stirred bioreactor. Therefore, inexpensive duckweed can be a promising feedstock for the economical and efficient production of SA through fermentation by Actinobacillus succinogenes GXAS137. (C) 2016 Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据