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Liquid hot water pretreatment of energy grasses and its influence of physico-chemical changes on enzymatic digestibility
Yu, Qiang1; Liu, Jing1,2; Zhuang, Xinshu1; Yuan, Zhenhong1; Wang, Wen1; Qi, Wei1; Wang, Qiong1,2; Tan, Xuesong1; Kong, Xiaoying1
2016
发表期刊BIORESOURCE TECHNOLOGY
卷号199
摘要Pennisetum hybrid I, II and switchgrass were pretreated with liquid hot water to enhance the release of sugars. The optimum hydrolysis factor for three energy grasses was 5.98, and the total xylose yield was 88.4%, 98.1% and 83.6% for grass I, II and S. It was indicated that the ratio of syringyl and guaiacyl units of lignin played an important role on the hemicellulose hydrolysis in LHW than branch degree, but latter contributed more on the characterization of xylooligomers degree of polymerization. Moreover, the analysis of multi-scale changes of substrate suggested that cellulose crystallinity index and degree of polymerization seemed no direct relationships for increase of enzymatic digestibility. While lignin barrier was the main factor limiting efficiency of sugar release, and Pennisetum hybrid with low lignin content and high sugar recovery was proved to be a prospective plant feedstock for cellulosic ethanol production. (C) 2015 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Energy Grasses Liquid Hot Water Pretreatment Enzymatic Digestibility Biomass Recalcitrance
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2015.07.086
研究领域[WOS]Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
关键词[WOS]SUGARCANE BAGASSE ; HYDROLYSIS ; SWITCHGRASS ; BIOETHANOL ; POPULUS ; BIOMASS
收录类别SCI
语种英语
WOS类目Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号WOS:000365047200033
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10901
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Yu, Qiang,Liu, Jing,Zhuang, Xinshu,et al. Liquid hot water pretreatment of energy grasses and its influence of physico-chemical changes on enzymatic digestibility[J]. BIORESOURCE TECHNOLOGY,2016,199.
APA Yu, Qiang.,Liu, Jing.,Zhuang, Xinshu.,Yuan, Zhenhong.,Wang, Wen.,...&Kong, Xiaoying.(2016).Liquid hot water pretreatment of energy grasses and its influence of physico-chemical changes on enzymatic digestibility.BIORESOURCE TECHNOLOGY,199.
MLA Yu, Qiang,et al."Liquid hot water pretreatment of energy grasses and its influence of physico-chemical changes on enzymatic digestibility".BIORESOURCE TECHNOLOGY 199(2016).
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