Arabinose substitution degree in xylan positively affects lignocellulose enzymatic digestibility after various NaOH/H2SO4 pretreatments in Miscanthus

doi:10.1016/j.biortech.2012.12.107

	Arabinose substitution degree in xylan positively affects lignocellulose enzymatic digestibility after various NaOH/H2SO4 pretreatments in Miscanthus
	Li, Fengcheng 1,2,3; Ren, Shuangfeng 1,2,3; Zhang, Wei 1,2,4; Xu, Zhengdan 1,2,3; Xie, Guosheng 1,2,3; Chen, Yan 1,2,3; Tu, Yuanyuan 1,2,3; Li, Qing 2,5,11; Zhou, Shiguang 2,11; Li, Yu 1,2,3; Tu, Fen 1,2,4; Liu, Lin 1,2,3; Wang, Yanting 1,2,3; Jiang, Jianxiong 6; Qin, Jingping 6; Li, Shizhong 7; Li, Qiwei 8; Jing, Hai-Chun; Zhou, Fasong 10; Gutterson, Neal 10; Peng, Liangcai 1,2,3,4
	2013
发表期刊	BIORESOURCE TECHNOLOGY
ISSN	0960-8524
卷号	130 页码:629-637
摘要	Xylans are the major hemicelluloses in grasses, but their effects on biomass saccharification remain unclear. In this study, we examined the 79 representative Miscanthus accessions that displayed a diverse cell wall composition and varied biomass digestibility. Correlation analysis showed that hemicelluloses level has a strong positive effect on lignocellulose enzymatic digestion after NaOH or H2SO4 pretreatment. Characterization of the monosaccharide compositions in the KOH-extractable and non-KOH-extractable hemicelluloses indicated that arabinose substitution degree of xylan is the key factor that positively affects biomass saccharification. The xylose/arabinose ratio after individual enzyme digestion revealed that the arabinose in xylan is partially associated with cellulose in the amorphous regions, which negatively affects cellulose crystallinity for high biomass digestibility. The results provide insights into the mechanism of lignocellulose enzymatic digestion upon pretreatment, and also suggest a goal for the genetic modification of hemicelluloses towards the bioenergy crop breeding of Miscanthus and grasses. (C) 2012 Elsevier Ltd. All rights reserved.
关键词	Miscanthus Xylan Biomass digestibility Cellulases Chemical pretreatment
学科领域	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
DOI	10.1016/j.biortech.2012.12.107
收录类别	SCI
语种	英语
WOS关键词	DILUTE-ACID PRETREATMENT ; BIOFUEL PRODUCTION ; WHEAT-STRAW ; CORN STOVER ; CELL-WALLS ; BIOMASS ; HYDROLYSIS ; CELLULOSE ; LIGNIN ; HEMICELLULOSES
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000316032300084
出版者	ELSEVIER SCI LTD
文献子类	Article
出版地	OXFORD
资助机构	111 Project(Ministry of Education, China - 111 Project) ; National Transgenic Project ; 973 Specific Pre-project(National Basic Research Program of China) ; HZAU
作者邮箱	peng, liang/HKE-0294-2023 ; Jiang, Jianxiong/G-2234-2016
引用统计	被引频次：104[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27952
专题	中科院北方资源植物重点实验室
作者单位	1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China 2.Huazhong Agr Univ, Natl Ctr Plant Gene Res Wuhan, Wuhan 430070, Peoples R China 3.Huazhong Agr Univ, Biomass & Bioenergy Res Ctr, Wuhan 430070, Peoples R China 4.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Peoples R China 5.Huazhong Agr Univ, Coll Life Sci & Technol, Wuhan 430070, Peoples R China 6.Huazhong Agr Univ, Coll Sci, Wuhan 430070, Peoples R China 7.Hunan Agr Univ, Dept Biotechnol, Changsha 410128, Hunan, Peoples R China 8.Tsinghua Univ, Inst New Energy Technol, Beijing 100084, Peoples R China 9.Guangzhou Sugarcane Ind Res Inst, Guangdong Key Lab Sugarcane Improvement & Biorefi, Guangzhou 510316, Guangdong, Peoples R China 10.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 11.Mendel Biotechnol Inc, Hayward, CA 94545 USA 12.Hubei Aohua Bioenergy Ind Corp Ltd, Hanchuan 431602, Peoples R China
推荐引用方式 GB/T 7714	Li, Fengcheng,Ren, Shuangfeng,Zhang, Wei,et al. Arabinose substitution degree in xylan positively affects lignocellulose enzymatic digestibility after various NaOH/H2SO4 pretreatments in Miscanthus[J]. BIORESOURCE TECHNOLOGY,2013,130:629-637.
APA	Li, Fengcheng.,Ren, Shuangfeng.,Zhang, Wei.,Xu, Zhengdan.,Xie, Guosheng.,...&Peng, Liangcai.(2013).Arabinose substitution degree in xylan positively affects lignocellulose enzymatic digestibility after various NaOH/H2SO4 pretreatments in Miscanthus.BIORESOURCE TECHNOLOGY,130,629-637.
MLA	Li, Fengcheng,et al."Arabinose substitution degree in xylan positively affects lignocellulose enzymatic digestibility after various NaOH/H2SO4 pretreatments in Miscanthus".BIORESOURCE TECHNOLOGY 130(2013):629-637.

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