Effect of combined inorganic with organic acids pretreatment of rice straw on its structure properties and enzymatic hydrolysis

doi:10.1002/ep.12703

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	Effect of combined inorganic with organic acids pretreatment of rice straw on its structure properties and enzymatic hydrolysis
	Li, Yun 1; Qi, Benkun 1; Feng, Jie 2; Zhang, Yi 2; Wan, Yinhua 1
刊名	ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
	2018-03-01
卷号	37 期号:2 页码:808-814
关键词	Dilute Acids Rice Straw Enzymatic Hydrolysis Structure Properties
ISSN号	1944-7442
DOI	10.1002/ep.12703
文献子类	Article
英文摘要	Rice straw was pretreated with sulfuric acid combined with five organic acids (oxalic acid, acetic acid, tartaric acid, succinic acid, and fumaric acid) at 121 degrees C for 90min with five different blending ratios. The concentrations of glucose, xylose, arabinose and inhibitors such as acetic acid, furfural and HMF (5-hydroxymethylfurfural) in the prehydrolysate were analyzed. It demonstrated that the concentrations of both sugars and inhibitors in prehydrolysate decreased with increasing organic acids blending ratio. The different solid residues from pretreatments were subjected to enzymatic hydrolysis process. The results showed that pretreating rice straw using combined sulfuric acid with oxalic acid or fumaric acid resulted in the maximum glucose yield (approximate to 66%) after 72h enzymatic hydrolysis in sharp contrast to approximate to 58% glucose yield obtained from pretreatment only with sulfuric acid under the same conditions. Furthermore, the structure of the raw material and the pretreated rice straw were characterized by scanning electron microscopy (SEM) and Fourier transformer infrared (FTIR) spectrum to clarify the effects of the combined sulfuric acid with oxalic or fumaric acid pretreatment on disrupting the fibers, removing hemicellulose and making the cellulose structure loose. (c) 2017 American Institute of Chemical Engineers Environ Prog, 37: 808-814, 2018
WOS关键词	BY-PRODUCTS ; CONVERSION ; ETHANOL
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000427115500021
资助机构	National Natural Science Foundation of China(21306211) ; National High Technology Research and Development Program of China (863 Program)(2014AA021902)
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/24115]
专题	过程工程研究所_生化工程国家重点实验室
作者单位	1.Chinese Acad Sci, Univ Chinese Acad Sci, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China 2.BBCA Grp, 777 Western Shengli Rd, Bengbu 233010, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Li, Yun,Qi, Benkun,Feng, Jie,et al. Effect of combined inorganic with organic acids pretreatment of rice straw on its structure properties and enzymatic hydrolysis[J]. ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,2018,37(2):808-814.
APA	Li, Yun,Qi, Benkun,Feng, Jie,Zhang, Yi,&Wan, Yinhua.(2018).Effect of combined inorganic with organic acids pretreatment of rice straw on its structure properties and enzymatic hydrolysis.ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,37(2),808-814.
MLA	Li, Yun,et al."Effect of combined inorganic with organic acids pretreatment of rice straw on its structure properties and enzymatic hydrolysis".ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY 37.2(2018):808-814.