Journal
BIORESOURCE TECHNOLOGY
Volume 199, Issue -, Pages 181-187Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.08.104
Keywords
Green liquor pretreatment; Lignin; Substrate enzymatic digestibility (SED); Wheat straw
Funding
- National Key Technology Research and Development Program of China [2015BAD15B09]
- National Natural Science Foundation of China [31370571]
- Specialized Research Fund for the Doctoral Program of Higher Education, China [20133204110006]
- Priority Academic Program Development of Jiangsu Higher Education Institutions, China
Ask authors/readers for more resources
In this work, the substrate enzymatic digestibility (SED) and the lignin structure of green liquor (GL) pretreated wheat straw stems and leaves were investigated. Compared with wheat straw stems, leaves showed higher delignification selectivity in GL pretreatment and higher SED in enzymatic hydrolysis. Wet chemical analysis indicated that, characterized with lower content of syringyl units and less beta-O-4 linkages, leaf lignin is structurally different from stem lignin. After GL pretreatment, the drops of both nitrobenzene oxidation and ozonation products yield of leaves were obviously higher than those of stems, which means that more beta-O-4 linkages of leaf lignin were broken than that of stem lignin. The SED of total sugar in GL-pretreated leaves was about 50% higher than that in GL-pretreated stems. The less content and lower S/G ratio of lignin are suggested to be the important factors for the better SED of GL-pretreated leaves. (C) 2015 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available