Xylo-oligosaccharides and Ethanol Production from Liquid Hot Water Hydrolysate of Sugarcane Bagasse

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	Xylo-oligosaccharides and Ethanol Production from Liquid Hot Water Hydrolysate of Sugarcane Bagasse
	Yu, Qiang 1; Xu, Chunxun 1,2; Zhuang, Xinshu1 ; Yuan, Zhenhong1 ; He, Minchao1 ; Zhou, Guixiong 1
刊名	bioresources
	2015
卷号	10 期号:1 页码:30-40
关键词	Liquid hot water Xylo-oligosaccharides Ethanol Sugarcane bagasse
英文摘要	with the objective of maximizing the use of liquid hot water hydrolysate of sugarcane bagasse, xylo-oligosaccharides and ethanol were respectively produced by the methods of purification and microbial fermentation. the processes of purification with activated charcoal, overliming, solvent extraction, vacuum evaporation, and use of an ion exchange resin were evaluated, and the results indicated that anion exchange chromatography performed well in terms of by-product removal. the recovery and purity of xylo-oligosaccharides reached 92.0% and 90.4%, respectively, using column chromatography with the resin ls30 at a flow rate of 2 ml/min at 25 degrees c. the hydrolysate was used in ethanol fermentation with pichia stipitis cbs6054 followed by the production of fermentable saccharides and detoxification. the highest ethanol concentration was 4.12 g/l with a theoretical yield of 47.9% for the hydrolysate after xylanase digestion and resin detoxification, similar to the data of the control experiment, which had an ethanol concentration of 4.64 g/l and a yield of 49.6%. however, the former had a higher ethanol productivity of 0.0860 g/(l.h), and the highest ethanol concentration appeared 12 to 24 h earlier compared to the control. this study suggests that combined generation of xylo-oligosaccharides and cellulosic ethanol could help maximize profits for a cane sugar factory.
WOS标题词	science & technology ; technology
类目[WOS]	materials science, paper & wood
研究领域[WOS]	materials science
关键词[WOS]	sweet sorghum bagasse ; activated-charcoal ; xylitol production ; pichia-stipitis ; corn fiber ; autohydrolysis ; xylooligosaccharides ; detoxification
收录类别	SCI
语种	英语
WOS记录号	WOS:000351941000006
公开日期	2016-01-12
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/9112]
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,Xu, Chunxun,Zhuang, Xinshu,et al. Xylo-oligosaccharides and Ethanol Production from Liquid Hot Water Hydrolysate of Sugarcane Bagasse[J]. bioresources,2015,10(1):30-40.
APA	Yu, Qiang,Xu, Chunxun,Zhuang, Xinshu,Yuan, Zhenhong,He, Minchao,&Zhou, Guixiong.(2015).Xylo-oligosaccharides and Ethanol Production from Liquid Hot Water Hydrolysate of Sugarcane Bagasse.bioresources,10(1),30-40.
MLA	Yu, Qiang,et al."Xylo-oligosaccharides and Ethanol Production from Liquid Hot Water Hydrolysate of Sugarcane Bagasse".bioresources 10.1(2015):30-40.