文献类型：期刊文献

英文题名：High titer L-lactic acid production from corn stover with minimum wastewater generation and techno-economic evaluation based on Aspen plus modeling

作者：Liu, Gang[1];Sun, Jiaoe[1];Zhang, Jian[1];Tu, Yi[1];Bao, Jie[1]

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

年份：2015

卷号：198

起止页码：803

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20154201386529);WOS:【SCI-EXPANDED(收录号:WOS:000363487500102)】；

基金：This research was supported by the National Basic Research Program of China (2011CB707406), the Natural Science Foundation of China (21306048), the National High-Tech Program of China (2012AA022301/2014AA021901).

语种：英文

外文关键词：High titer L-lactic acid fermentation; Dry milling biorefinery process (DMBP); Corn stover; Aspen plus modeling; Techno-economic analysis

摘要：Technological potentials of L-lactic acid production from corn stover feedstock were investigated by experimental and techno-economic studies. An optimal performance with 104.5 g/L in L-lactic acid titer and 71.5% in overall yield from cellulose in corn stover to L-lactic acid using an engineered Pediococcus acidilactici strain were obtained by overcoming several technical barriers. A rigorous Aspen plus model for L-lactic acid production starting from dry dilute acid pretreated and biodetoxified corn stover was developed. The techno-economic analysis shows that the minimum L-lactic acid selling price (MLSP) was $0.523 per kg, which was close to that of the commercial L-lactic acid produced from starch feedstock, and 24% less expensive than that of ethanol from corn stover, even though the xylose utilization was not considered. The study provided a prototype of industrial application and an evaluation model for high titer L-lactic acid production from lignocellulose feedstock. (C) 2015 Elsevier Ltd. All rights reserved.