文献类型：期刊文献

英文题名：Efficient Fast Fractionation of Biomass Using a Diol-Based Deep Eutectic Solvent for Facilitating Enzymatic Hydrolysis and Obtaining High-Quality Lignin

作者：Cheng, Jinyuan[1] Liu, Xuze[1] Zhan, Yunni[1] Wang, Jia[2] Meng, Xianzhi[3] Zhou, Xuelian[1] Yoo, Chang Geun[6] Huang, Caoxing[2] Huang, Chen[1,2] Fang, Guigan[1,2] Ragauskas, Arthur J.[3,4,5]

第一作者：Cheng, Jinyuan

通信作者：Huang, C[1];Huang, C[2]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Prov Key Lab Biomass Energy & Mat, Nanjing 210042, Peoples R China;[2]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210037, Peoples R China;[3]Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA;[4]Univ Tennessee, Inst Agr, Inst Agr, Dept Forestry Wildlife & Fisheries, Knoxville, TN 37996 USA;[5]Oak Ridge Natl Lab, UTK ORNL Joint Inst Biol Sci, Biosci Div, Oak Ridge, TN 37831 USA;[6]SUNY Coll Environm Sci & Forestry, Dept Paper & Bioproc Engn, Syracuse, NY 13210 USA

年份：2024

卷号：17

期号：8

外文期刊名：CHEMSUSCHEM

收录：;EI(收录号：20240415428376);Scopus(收录号：2-s2.0-85182683915);WOS:【SCI-EXPANDED(收录号:WOS:001146599500001)】；

基金：This work was supported by Fundamental Research Funds of CAF (CAFYBB2023QA006), National Natural Science Foundation (32371821, 32301546), National Key Technology Research and Development Program of China (2023YFD2201904), "Jiebangguashuai" Science and Technology Project of Yibin City (2022JB009), Jiangsu Province Key Laboratory of Biomass Energy and Materials (JSBEM-S-202203), the Natural Science Foundation of Jiangsu Province (BK20230405), and Young Elite Scientist Sponsorship Program by CAST. X. M. and A. J. R. efforts were supported by the University of Tennessee, Knoxville.

语种：英文

外文关键词：Short-time pretreatment; diol DES; lignin protection; delignification; enzymatic hydrolysis

摘要：Current DES pretreatment is often performed under relatively severe conditions with high temperature, long time, and high DES usage. This work studied a short-time diol DES (deep eutectic solvent) pretreatment under mild conditions to fractionate the bamboo, facilitate enzymatic hydrolysis, and obtain high-quality lignin. At an optimized condition of 130 degrees C for only 10 min, lignin and xylan removal reached 61.34 % and 84.15 %, with residual glucan showing a similar to 90 % enzymatic hydrolysis yield. Equally important, the dissolved lignin could be readily recovered with 97.51 % yield, exhibiting 96.65 % beta-O-4 preservation. The fractionation and lignin protection mechanisms were unveiled by XRD, FTIR, cellulose-DP, 2D HSQC NMR, P-31 NMR and GPC analysis. This study highlighted that short-time fractionation of bamboo can be achieved by a diol-based DES which is an ideal strategy to upgrade the lignocellulose biomass for high enzymatic hydrolysis yields and high-quality lignin stream.