期刊
BIORESOURCE TECHNOLOGY
卷 239, 期 -, 页码 74-81出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.04.114
关键词
Miscanthus; Lignocellulose features; Biomass porosity; Steam explosion; Biomass saccharification
资金
- National Key Research and Development Program [2016YFD0800804]
- Fundamental Research Funds for the Central Universities of China [2662015PY018]
- 111 Project of Ministry of Education of China [B08032]
In this study, total ten Miscanthus accessions exhibited diverse cell wall compositions, leading to largely varied hexoses yields at 17%-40% (% cellulose) released from direct enzymatic hydrolysis of steam-exploded (SE) residues. Further supplied with 2% Tween-80 into the enzymatic digestion, the Mis7 accession showed the higher hexose yield by 14.8-fold than that of raw material, whereas the Mis10 had the highest hexoses yield at 77% among ten Miscanthus accessions. Significantly, this study identified four wall polymer features that negatively affect biomass saccharification as p < 0.05 or 0.01 in the SE residues, including cellulose DP, Xyl and Ara of hemicellulose, and S-monomer of lignin. Based on Simons' stain, the SE porosity (defined by DY/DB) was examined to be the unique positive factor on biomass enzymatic digestion. Hence, this study provides the potential strategy to enhance biomass saccharification using optimal biomass process technology and related genetic breeding in Miscanthus and beyond. (C) 2017 Elsevier Ltd. All rights reserved.
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