QQ客服 官方微博 反馈留言

	The integration of dilute acid hydrolysis of xylan and fast pyrolysis of glucan to obtain fermentable sugars
	Jiang, Liqun1,2; Wu, Nannan1,3; Zheng, Anqing2; Zhao, Zengli2; He, Fang2; Li, Haibin2
刊名	Biotechnology for biofuels
	2016-09-13
卷号	9页码:10
关键词	Xylan Glucan Acid hydrolysis Fast pyrolysis Levoglucosan
ISSN号	1754-6834
DOI	10.1186/s13068-016-0612-0
通讯作者	Zhao, zengli(zhaozl@ms.giec.ac.cn)
英文摘要	Background: fermentable sugars are important intermediates in the biological conversion of biomass. hemicellulose and amorphous cellulose are easily hydrolyzed to fermentable sugars in dilute acid, whereas crystalline cellulose is more difficult to be hydrolyzed. cellulose fast pyrolysis is an alternative method to liberate valuable fermentable sugars from biomass. the amount of levoglucosan generated from lignocellulose by fast pyrolysis is usually lower than the theoretical yield based on the cellulose fraction. pretreatment is a promising route to improve the yield of levoglucosan from lignocellulose. results: the integration of dilute sulfuric acid hydrolysis and fast pyrolysis to obtain fermentable sugars was evaluated in this study. dilute sulfuric acid hydrolysis could remove more than 95.1 and 93.4 % of xylan (the main component of hemicellulose) from sugarcane bagasse and corncob with high yield of xylose. on the other hand, dilute sulfuric acid hydrolysis was also an effective pretreatment to enhance levoglucosan yield from lignocellulose. dilute acid hydrolysis could accumulate glucan (the component of cellulose) and remove most of the alkali and alkaline earth metals which were powerful catalysts during fast pyrolysis. further increase in dilute acid concentration (from 0 to 2 %) in pretreatment could promote the yield of levoglucosan in fast pyrolysis. the acid pretreated sugarcane bagasse and corncob gave levoglucosan yields of 43.8 and 35.2 % which were obvious higher than those of raw sugarcane bagasse (12.0 %) and corncob (7.0 %). conclusions: obtaining fermentable sugars by combination dilute acid hydrolysis of xylan and fast pyrolysis of glucan could make full utilization of biomass, and get fermentable sugars economically from biomass for bio-refinery.
WOS关键词	ENZYMATIC-HYDROLYSIS ; SUBSEQUENT FERMENTATION ; ESCHERICHIA-COLI ; BIOMASS ; LEVOGLUCOSAN ; CELLULOSE ; ETHANOL ; PRETREATMENT ; OIL ; EXTRACTION
WOS研究方向	Biotechnology & Applied Microbiology ; Energy & Fuels
WOS类目	Biotechnology & Applied Microbiology ; Energy & Fuels
语种	英语
出版者	BIOMED CENTRAL LTD
WOS记录号	WOS:000383017100001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2376184
专题	中国科学院大学
通讯作者	Zhao, Zengli
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Liqun,Wu, Nannan,Zheng, Anqing,et al. The integration of dilute acid hydrolysis of xylan and fast pyrolysis of glucan to obtain fermentable sugars[J]. Biotechnology for biofuels,2016,9:10.
APA	Jiang, Liqun,Wu, Nannan,Zheng, Anqing,Zhao, Zengli,He, Fang,&Li, Haibin.(2016).The integration of dilute acid hydrolysis of xylan and fast pyrolysis of glucan to obtain fermentable sugars.Biotechnology for biofuels,9,10.
MLA	Jiang, Liqun,et al."The integration of dilute acid hydrolysis of xylan and fast pyrolysis of glucan to obtain fermentable sugars".Biotechnology for biofuels 9(2016):10.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。