文献类型：期刊文献

英文题名：A high-solid DES pretreatment using never-dried biomass as the starting material: towards high-quality lignin fractionation

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

第一作者：Cheng, Jinyuan

通信作者：Huang, C[1];Ragauskas, AJ[2];Ragauskas, AJ[3];Ragauskas, AJ[4]

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, Ctr Renewable Carbon, Dept Forestry Wildlife & Fisheries, Knoxville, TN 37996 USA;[5]Oak Ridge Natl Lab, Joint Inst Biol Sci, Biosci Div, Oak Ridge, TN 37831 USA;[6]SUNY Coll Environm Sci & Forestry, Dept Chem Engn, Syracuse, NY 13210 USA

年份：0

外文期刊名：GREEN CHEMISTRY

收录：;EI(收录号：20230713579953);Scopus(收录号：2-s2.0-85147751460);WOS:【SCI-EXPANDED(收录号:WOS:000926903000001)】；

基金：This work was supported by the Jiangsu Province Key Laboratory of Biomass Energy and Materials (JSBEM-S-202203), the Young Elite Scientist Sponsorship Program by CAST, and the National Natural Science Foundation for Youth (32001273). The efforts of AJR were supported by the University of Tennessee, Knoxville.

语种：英文

摘要：This study investigated a high-solid diol deep eutectic solvent (DES) pretreatment using a wet substrate as the starting material. This pretreatment led to a remarkable glucan saccharification of 94.8% with efficient lignin and xylan removal (as high as 63.1% and 73.0%, respectively). The chemical structures of the substrates were analyzed comprehensively to reveal the impact of the pretreatment. In addition, over 90% of the removed lignin was recovered from the pretreated liquid, which exhibited a well-preserved beta-O-4 structure (46-56/100Ar). The protection mechanism of our DES was investigated by 2D HSQC NMR, GPC, and P-31 NMR analysis. This study emphasized that diol-based DES pretreatment of undried lignocellulosic biomass at a high-solid loading can significantly utilize both carbohydrates and lignin fractions with high saccharification yields and high-quality lignin as a co-product.