文献类型：期刊文献

英文题名：Simultaneous and rate-coordinated conversion of lignocellulose derived glucose, xylose, arabinose, mannose, and galactose into D-lactic acid production facilitates D-lactide synthesis

作者：He, Niling[1]; Chen, Mingxing[1]; Qiu, Zhongyang[1,2]; Fang, Chun[1]; Lidén, Gunnar[3]; Liu, Xiucai[4]; Zhang, Bin[1]; Bao, Jie[1]

机构：[1] State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [2] Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, 111 West Changjiang Road, Jiangsu, Huaian, 223300, China; [3] Department of Chemical Engineering, Lund University, Lund, 221 00, Sweden; [4] Cathay Biotech Inc, 1690 Cailun Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China

年份：2023

卷号：377

外文期刊名：Bioresource Technology

收录：EI(收录号：20231313817660)

语种：英文

外文关键词：Coordination reactions - Fermentation - Glucose - Lactic acid - Lignin - Saccharification

摘要：D-lactide is the precursor of poly(D-lactide) (PDLA) or stereo-complex with poly(L-lactide) (PLLA). Lignocellulosic biomass provides the essential feedstock option to synthesize D-lactic acid and D-lactide. The residual sugars in D-lactic acid fermentation broth significantly blocks the D-lactide synthesis. This study showed a simultaneous and rate-coordinated conversion of lignocellulose derived glucose, xylose, arabinose, mannose, and galactose into D-lactic acid by adaptively evolved Pediococcus acidilactici ZY271 by simultaneous saccharification and co-fermentation (SSCF) of wheat straw. The produced D-lactic acid achieved minimum residual sugars (～1.7 g/L), high chirality (～99.1%) and high titer (～128 g/L). A dry acid pretreatment eliminated the wastewater stream generation and the biodetoxification by fungus Amorphotheca resinae ZN1 removed the inhibitors from the pretreatment. The removal of the sugar residues and inhibitor impurities in D-lactic acid production from lignocellulose strongly facilitated the D-lactide synthesis. This study filled the gap in cellulosic D-lactide production from lignocellulose-derived D-lactic acid. ? 2023 Elsevier Ltd