Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis

doi:10.1021/acssuschemeng.7b00561

GIEC OpenIR > 中国科学院广州能源研究所

	Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis
	Jiang, Liqun 1,2; Wu, Nannan 1; Zheng, Anqing2 ; Liu, Anqi1 ; Zhao, Zengli2 ; Zhang, Fan 3; He, Fang1 ; Li, Haibin1
	2017-06-01
发表期刊	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷号	5 期号:6 页码:5208-5213
摘要	Conversion of lignocellulose to sugars suitable for microbial fermentation is an outstanding obstacle in developing biorefinery. Both hemicellulose and cellulose fractions are polymers of sugars and thereby primary candidates for fermentable sugars production. In this study, the flexibility of an integrated biomass conversion process was offered. The hemicellulose of corncobs was utilized to release fermentable sugars by sulfuric acid hydrolysis first. The remaining solid residue from acid hydrolysis, containing a lot of cellulose, was further used to produce levoglucosan by fast pyrolysis. This process appeared to present several advantages: (i) Almost all of hemicellulose (99.7%) was hydrolyzed, and the yield of xylan was achieved 86.1%. (ii) The alkali and alkaline earth metals, which had negative catalytic influence on levoglucosan formation, were nearly and completely (93.7%) removed by acid pretreatment. (iii) A preferential degradation of hemicellulose and amorphous cellulose during acid hydrolysis resulted in accumulation of crystalline cellulose of acid-pretreated biomass, which was favorable for levoglucosan production. (iv) The yield of levoglucosan increased by 450.0% for acid-pretreated corncobs (37.4%) compared with that of raw material (6.8%). The effectiveness to enhance levoglucosan yields ranged as high as 63.4%. Further increase in sulfuric acid concentration (0-10%) and temperature (30-120 degrees C) in acid pretreatment prior to fast pyrolysis could enhance levoglucosan formation. Consequently, this strategy, which utilized simple chemical regents to overcome biomass recalcitrance and liberate fermentable sugars while also remaining cost-effective, has the potential to underlie a biorefinery.
文章类型	Article
关键词	Hemicellulose Cellulose Acid Hydrolysis Fast Pyrolysis Levoglucosan
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1021/acssuschemeng.7b00561
研究领域[WOS]	Chemistry ; Engineering
关键词[WOS]	LEVOGLUCOSAN FORMATION ; ESCHERICHIA-COLI ; LIPID PRODUCTION ; BIOMASS ; PRETREATMENT ; MECHANISMS ; YIELDS ; WOOD ; POTASSIUM ; ETHANOL
收录类别	SCI
语种	英语
项目资助者	National Natural and Science Foundation of China(51606204 ; Science and Technology Planning Project of Guangzhou City(201707010236) ; Guangdong Key Laboratory of New and Renewable Energy Research and Development(Y609jf1001) ; Natural and Science Foundation of Guangdong Province(2014A030310322) ; 51376186)
WOS类目	Chemistry, Multidisciplinary ; Engineering, Chemical
WOS记录号	WOS:000402950000082
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/14138
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, Guangdong Key Lab New & Renewable Energy Res & De, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Biomass Grp, Key Lab Trop Plant Resources & Sustainable Use, 88 Xuefulu, Kunming 650223, Yunnan, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Jiang, Liqun,Wu, Nannan,Zheng, Anqing,et al. Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(6):5208-5213.
APA	Jiang, Liqun.,Wu, Nannan.,Zheng, Anqing.,Liu, Anqi.,Zhao, Zengli.,...&Li, Haibin.(2017).Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(6),5208-5213.
MLA	Jiang, Liqun,et al."Comprehensive Utilization of Hemicellulose and Cellulose To Release Fermentable Sugars from Corncobs via Acid Hydrolysis and Fast Pyrolysis".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.6(2017):5208-5213.