文献类型：期刊文献

英文题名：Assessing the availability of two bamboo species for fermentable sugars by alkaline hydrogen peroxide pretreatment

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

第一作者：Zhan, Yunni

通信作者：Huang, C[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 Re, 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]Joint Inst Biol Sci, Biosci Div, Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

年份：2022

卷号：349

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20220911720297);Scopus(收录号：2-s2.0-85125284923);WOS:【SCI-EXPANDED(收录号:WOS:000781667800007)】；

基金：This study was supported by the National Natural Science Founda-tion for Youth (32001273) and Jiangsu Province Key Laboratory of Biomass Energy and Materials (JSBEM-S-202004) . AJR efforts were sponsored by the University of Tennessee Governor Chairs program.

语种：英文

外文关键词：Neosinocalamus affinis; Phyllostachys edulis; Alkaline hydrogen peroxide pretreatment; Enzymatic saccharification; Lignin

摘要：This study comprehensively investigated two bamboo species (i.e. Neosinocalamus affinis and Phyllostachys edulis) in terms of their cell wall ultrastructure, chemical compositions, enzymatic saccharification, and lignin structure before and after alkaline hydrogen peroxide pretreatment (AHP). During AHP, Neosinocalamus affinis (NAB) had higher delignification than Phyllostachys edulis (PEB), and thus showed better enzymatic digestibility (93.05% vs 53.57% for glucan). The fundamental chemical behavior of the bamboo lignins was analyzed by fluorescence microscope (FM), confocal Raman microscope (CRM), molecular weight analysis, and 2D HSQC-NMR. Results indicated that the PEB has thicker cell wall and more concentrated lignin in its compound middle lamella and cell corner middle lamella than NAB. Moreover, PEB lignin contains more G units (S/G of 0.95), in evident contrast to that of NAB lignin (S/G of 1.30), which favor the formation of C-C linkages, thus impeding its degradation during the AHP.