文献类型：期刊文献

英文题名：Investigation of the alkaline hydrogen peroxide pretreatment: From cellulose saccharification to lignin isolation

作者：Zhan, Yunni[1] Liu, Xuze[1] Huang, Chen[1,2] Zhou, Xuelian[1] Lyu, Yan[1] Lin, Yan[1] Huang, Caoxing[2] Ma, Wencan[1] Xie, Zhanghong[6] Fang, Guigan[1,2] Ragauskas, Arthur J.[3,4,5]

第一作者：Zhan, Yunni

通信作者：Zhou, XL[1];Ma, WC[1]

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 Knoxville, 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]Yibin Paper Ind Co Ltd, Yibin 644109, Peoples R China

年份：2024

卷号：214

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20241715952458);Scopus(收录号：2-s2.0-85190745090);WOS:【SCI-EXPANDED(收录号:WOS:001333912100001)】；

基金：This study was supported by the National Key R&D Program of China (2023YFD2201904) , National Natural Science Foundation of China (32371821, 32301546) , Jiangsu Province Key Laboratory of Biomass Energy and Materials (JSBEM-S-202309) , "Jie bang gua shuai" Science and Technology Project of Yibin City (2022JB009) and "Jie bang gua shuai" Project of Chenzhou National Sustainable Development Agenda Innovation Demonstration Zone Provincial Special Program (2022sfq56) . AJR efforts were sponsored by the University of Tennessee Governor Chairs program.

语种：英文

外文关键词：AHP pretreatment; Delignification; Enzymatic hydrolysis; Recovered lignin; Lignocellulose valorization

摘要：Alkaline hydrogen peroxide (AHP) pretreatment, a green and effective technology for biomass fractionation, was studied to overcome the recalcitrance of bamboo for lignin isolation and facilitating enzymatic saccharification. In order to explore the impact of AHP pretreatment on the cellulose saccharification of bamboo, the glucan/xylan recovery, lignin removal, and structural properties of solid substrate were investigated in this research. AHP pretreatment at 90 degree celsius for 60 min with 3.0 % H2O2 2 O 2 resulted in the maximum glucan/xylan hydrolysis yield reaching 90.62 % and 88.30 %, respectively. Specially, for the first time, the recovered lignin from the AHP liquid possesses up to 59.84/100Ar of beta- O-4 linkages, abundant ferulic acid (FA), and p-coumarate (pCE) p CE) structures, as well as a homogeneous molecular structure with high purity (84.04%-96.20%) and preferable antioxidant activities (IC50: 0.015-0.018 mg/mL). These results provided theoretical support for the comprehensive valorization of lignocellulose, which is favorable for achieving viable biorefineries.