文献类型：期刊文献

英文题名：An Approach of Utilizing Water-Soluble Carbohydrates in Lignocellulose Feedstock for Promotion of Cellulosic L-Lactic Acid Production

作者：Han, Xushen[1];Hong, Feng[2];Liu, Gang[1];Bao, Jie[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Donghua Univ, Coll Chem Chem Engn & Biotechnol, Shanghai 201620, Peoples R China

年份：2018

卷号：66

期号：39

起止页码：10225

外文期刊名：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY

收录：;EI(收录号：20183905873718);WOS:【SCI-EXPANDED(收录号:WOS:000446923600013)】；

基金：This research was supported by the National Key Research and Development Program of China (2017YFB0309302).

语种：英文

外文关键词：lignocellulose; water-soluble carbohydrates; L-lactic acid; solid state fermentation; simultaneous saccharification and cofermentation; techno-economic analysis

摘要：Agricultural lignocellulose biomass generally contains certain amounts of water-soluble carbohydrates (WSC) such as glucose, fructose, or sucrose. These sugars are generally degraded in pretreatment at high temperature or discharged with wastewater in a detoxification process. This study proposed an approach of utilizing frequently ignored water-soluble carbohydrates for promotion of cellulosic L-lactic acid production. A simple solid state fermentation was performed during a corn stover storage period to convert the sugars into L-lactic acid and then a dry biorefining technology was applied to convert cellulose and hemicellulose fractions into the same L-lactic acid product. The 5-hydroxymethylfurfural (HMF) formation in pretreatment was significantly reduced and the consequent biodetoxification time was shortened. L-Lactic acid production was increased from 130.2 g/L to 139.0 g/L, and the minimum L-lactic acid selling price was reduced by 5.9%. This study provided an important option of biorefinery processing technology for production of value added biochemicals.