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	Xylanase supplementation on enzymatic saccharification of dilute acid pretreated poplars at different severities
	Zhang, Chao1,2; Zhuang, Xinshu2,3; Wang, Zhao Jiang2,4; Matt, Fred2; St John, Franz2; Zhu, J. Y.2
刊名	cellulose
	2013-08-01
卷号	20期号:4页码:1937-1946
关键词	Xylanase supplementation Enzymatic hydrolysis/saccharification Poplar/hard wood Pretreatment severity Substrate accessibility
英文摘要	three pairs of solid substrates from dilute acid pretreatment of two poplar wood samples were enzymatically hydrolyzed by cellulase preparations supplemented with xylanase. supplementation of xylanase improved cellulose saccharification perhaps due to improved cellulose accessibility by xylan hydrolysis. total xylan removal directly affected enzymatic cellulose saccharification. furthermore, xylan removal by pretreatment and xylanase are indifferent to enzymatic cellulose saccharification. however, more enzymatic xylose and glucose yields were obtained for a substrate with lower xylan content after a severer pretreatment at the same xylanase dosage. the effectiveness of xylanase at increased dosages depended on the substrates structure or accessibility. high xylanase dosages were more effective on well pretreated substrates than on under-pretreated substrates with high xylan content. the application sequence of xylanase and cellulase affected cellulose saccharification. this effect varied with substrate accessibility, perhaps due to competition between xylanase and cellulase binding to the substrate.
WOS标题词	science & technology ; technology ; physical sciences
类目[WOS]	materials science, paper & wood ; materials science, textiles ; polymer science
研究领域[WOS]	materials science ; polymer science
关键词[WOS]	cellulosic ethanol-production ; corn stover ; sporl pretreatments ; biofuel production ; woody biomass ; hydrolysis ; enzymes ; recalcitrance ; technologies ; enhancement
收录类别	SCI
语种	英语
WOS记录号	WOS:000322673000033
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/10041]
专题	中国科学院广州能源研究所
作者单位	1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 2.US Forest Serv, USDA, Forest Prod Lab, Madison, WI USA 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China 4.Shandong Polytech Univ, Key Lab Paper Sci & Technol, Jinan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chao,Zhuang, Xinshu,Wang, Zhao Jiang,et al. Xylanase supplementation on enzymatic saccharification of dilute acid pretreated poplars at different severities[J]. cellulose,2013,20(4):1937-1946.
APA	Zhang, Chao,Zhuang, Xinshu,Wang, Zhao Jiang,Matt, Fred,St John, Franz,&Zhu, J. Y..(2013).Xylanase supplementation on enzymatic saccharification of dilute acid pretreated poplars at different severities.cellulose,20(4),1937-1946.
MLA	Zhang, Chao,et al."Xylanase supplementation on enzymatic saccharification of dilute acid pretreated poplars at different severities".cellulose 20.4(2013):1937-1946.

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