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Effect of combined inorganic with organic acids pretreatment of rice straw on its structure properties and enzymatic hydrolysis
Li, Yun1; Qi, Benkun1; Feng, Jie2; Zhang, Yi2; Wan, Yinhua1
2018-03-01
Source PublicationENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
ISSN1944-7442
Volume37Issue:2Pages:808-814
AbstractRice 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
KeywordDilute Acids Rice Straw Enzymatic Hydrolysis Structure Properties
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1002/ep.12703
Indexed BySCI
Language英语
WOS KeywordBY-PRODUCTS ; CONVERSION ; ETHANOL
WOS Research AreaScience & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS SubjectGREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Engineering, Environmental ; Engineering, Chemical ; Environmental Sciences
Funding OrganizationNational Natural Science Foundation of China(21306211) ; National High Technology Research and Development Program of China (863 Program)(2014AA021902)
WOS IDWOS:000427115500021
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24115
Collection生化工程国家重点实验室
Affiliation1.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
Recommended Citation
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.
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