Mixed acid-catalyzed hydrolysis (MACH) of waste distiller's grains (WDG) for production of fermentable sugar

doi:10.4028/www.scientific.net/AMM.295-298.1768

	Mixed acid-catalyzed hydrolysis (MACH) of waste distiller's grains (WDG) for production of fermentable sugar
	Ren, Haiwei1 ; Li, Jinping2 ; Zhang, Fei1
	2013
会议名称	2012 International Conference on Sustainable Energy and Environmental Engineering, ICSEEE 2012
会议录名称	Applied Mechanics and Materials
卷号	295-298
页码	1768-1775
会议日期	December 29, 2012 - December 30, 2012
会议地点	Guangzhou, China
出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
摘要	Waste distiller's grains (WDG),a co-product of brewing industry, was an abundant source of biomass that could be hydrolyzed to yield fermentation sugar for the production of fuel ethanol. In this study, hydrolysis of WDG using mixed acid as catalysts was examined with the indices of the concentration of reducing sugar and furfural. The structural characteristics of WDG before and after acid treatment were also discussed by means of SEM, FTIR and XRD. The results indicate that there are 59.32g×L-1 reducing sugar under the conditions of 100°C, solid-liquid ratio of 1:12 g×mL-1, acid concentrations of 2.0% and time of 120 min, with the conversions rate of 77.38% and 62.50% for hemicelluloses and cellulose, respectively. SEM photographs show that the structural modifications after acid treatment are pronounced in comparison to that of WDG, which present a rigid and compact morphology. A lot of large irregular pores with different sizes and shapes are formed and the structures are also severely distorted resulting in the increasing surface exposure and porosity. Instrumental analyses with FTIR and XRD indicate that the strength of characteristic peaks for corresponding typical functional groups of each component are changed compared with the feedstock, and there is an increase of the crystallinity index when WDG is subjected to the MACH treatment. © (2013) Trans Tech Publications, Switzerland.
关键词	Aldehydes Cellulose Fermentation Functional groups Furfural Hydrolysis Photography Acid-catalyzed hydrolysis Acidic hydrolysis Distiller's grains Reducing sugars Structural characteristics
DOI	10.4028/www.scientific.net/AMM.295-298.1768
收录类别	EI
语种	英语
EI入藏号	20131216128767
EI主题词	Sugar industry
ISSN	16609336
来源库	Compendex
分类代码	746 Imaging Techniques - 802.2 Chemical Reactions - 804.1 Organic Compounds - 815.1.1 Organic Polymers - 822 Food Technology
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/117589
专题	能源与动力工程学院生命科学与工程学院新能源学院党委组织部（党校、帮扶办）
作者单位	1.School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China; 2.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, China
第一作者单位	生命科学与工程学院
推荐引用方式 GB/T 7714	Ren, Haiwei,Li, Jinping,Zhang, Fei. Mixed acid-catalyzed hydrolysis (MACH) of waste distiller's grains (WDG) for production of fermentable sugar[C]:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany,2013:1768-1775.