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	Effect of hydrothermal pretreatment of sugarcane bagasse on enzymatic digestibility
	Zhuang, Xinshu; Yu, Qiang; Yuan, Zhenhong; Kong, Xiaoying; Qi, Wei
刊名	Journal of chemical technology and biotechnology
	2015-08-01
卷号	90期号:8页码:1515-1520
关键词	Hydrothermal pretreatment Enzymatic digestibility Sugarcane bagasse
ISSN号	0268-2575
DOI	10.1002/jctb.4467
通讯作者	Yu, qiang(yuqiang@ms.giec.ac.cn)
英文摘要	Backgroundhydrothermal pretreatments were applied to improve the cellulose digestibility of sugarcane bagasse (sb). the effect of hydrothermal process parameters, i.e. temperature, pressure and nh3 addition on the enzymatic digestibility was studied. with the objective of understanding the relationship between pretreatment and enzymatic digestibility, the ultrastructure of untreated and treated sb cell wall was observed. results72 h digestibility was enhanced from 15.7% (untreated sb) to 77.9% for the samples treated with hot water at 180 degrees c, 4 mpa for 20 min, while it reached 98.5% with the addition of 25% nh3 at 160 degrees c, 6 mpa for 60 min. there is no direct relationship between enzymatic digestibility and crystallinity index value, but it has a close relationship with the removal of hemicellulose and lignin. the boundaries among the different layers in the secondary wall of treated sb could not be distinguished exactly resulting from the migration of lignin in the hot water process or removal of lignin in the nh3 addition pretreatment. conclusionthe enzymatic digestibility of sb was enhanced by the hydrothermal pretreatment. the homogenization of distribution of cellulose and lignin in the cell wall layer resulted from the removal of hemicellulose or lignin contributed to the enhancement of accessibility to enzymatic attack. (c) 2014 society of chemical industry
WOS关键词	LIQUID HOT-WATER ; LIGNOCELLULOSIC BIOMASS ; BIOETHANOL PRODUCTION ; STRUCTURAL-CHANGES ; ACID PRETREATMENT ; CORN STOVER ; HYDROLYSIS ; TECHNOLOGIES ; SWITCHGRASS ; RECALCITRANCE
WOS研究方向	Biotechnology & Applied Microbiology ; Chemistry ; Engineering
WOS类目	Biotechnology & Applied Microbiology ; Chemistry, Multidisciplinary ; Engineering, Chemical
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000357332600019
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374063
专题	物理研究所
通讯作者	Yu, Qiang
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhuang, Xinshu,Yu, Qiang,Yuan, Zhenhong,et al. Effect of hydrothermal pretreatment of sugarcane bagasse on enzymatic digestibility[J]. Journal of chemical technology and biotechnology,2015,90(8):1515-1520.
APA	Zhuang, Xinshu,Yu, Qiang,Yuan, Zhenhong,Kong, Xiaoying,&Qi, Wei.(2015).Effect of hydrothermal pretreatment of sugarcane bagasse on enzymatic digestibility.Journal of chemical technology and biotechnology,90(8),1515-1520.
MLA	Zhuang, Xinshu,et al."Effect of hydrothermal pretreatment of sugarcane bagasse on enzymatic digestibility".Journal of chemical technology and biotechnology 90.8(2015):1515-1520.

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