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Improving enzymatic hydrolysis of wheat straw using ionic liquid 1-ethyl-3-methyl imidazolium diethyl phosphate pretreatment

文献类型:期刊论文

作者Li, Qiang; He, Yu-Cai; Xian, Mo; Jun, Gao; Xu, Xin; Yang, Jian-Ming; Li, Liang-Zhi
刊名BIORESOURCE TECHNOLOGY
出版日期2009-07-01
卷号100期号:14页码:3570-3575
关键词Wheat straw Ionic liquids 1-Ethyl-3-methyl imidazolium diethyl phosphate Pretreatment Enzymatic hydrolysis
ISSN号ISSN: 0960-8524
中文摘要This study aims to establish a cellulose pretreatment process using ionic liquids (ILs) for efficient enzymatic hydrolysis. The IL 1-ethyl-3-methyl imidazolium diethyl phosphate ([EMIM]DEP) was selected in view of its low viscous and the potential of accelerating enzymatic hydrolysis, and it could be recyclable. The yield of reducing sugars from wheat straw pretreated with this IL at 130 degrees C for 30 min reached 54.8% after being enzymatically hydrolyzed for 12 h. Wheat straw regenerated were hydrolyzed more easily than that treated with water. The fermentability of the hydrolyzates, obtained after enzymatic saccharification of the regenerated wheat straw, was evaluated using Saccharomyces cerevisiae. This microbe could ferment glucose efficiently, and the ethanol production was 0.43 g/g glucose within 26 h. In conclusion, the IL [EMIM]DEP shows promise as pretreatment solvent for wheat straw, although its cost should be reduced and in-depth exploration of this subject is needed.
英文摘要This study aims to establish a cellulose pretreatment process using ionic liquids (ILs) for efficient enzymatic hydrolysis. The IL 1-ethyl-3-methyl imidazolium diethyl phosphate ([EMIM]DEP) was selected in view of its low viscous and the potential of accelerating enzymatic hydrolysis, and it could be recyclable. The yield of reducing sugars from wheat straw pretreated with this IL at 130 degrees C for 30 min reached 54.8% after being enzymatically hydrolyzed for 12 h. Wheat straw regenerated were hydrolyzed more easily than that treated with water. The fermentability of the hydrolyzates, obtained after enzymatic saccharification of the regenerated wheat straw, was evaluated using Saccharomyces cerevisiae. This microbe could ferment glucose efficiently, and the ethanol production was 0.43 g/g glucose within 26 h. In conclusion, the IL [EMIM]DEP shows promise as pretreatment solvent for wheat straw, although its cost should be reduced and in-depth exploration of this subject is needed. (C) 2009 Elsevier Ltd. All rights reserved.
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Technology
学科主题生物基化学品
类目[WOS]Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
研究领域[WOS]Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
关键词[WOS]CELLULOSE FUNCTIONALIZATION ; LIGNOCELLULOSIC BIOMASS ; SACCHARIFICATION ; SPECTROSCOPY ; SOLVATION
收录类别SCI
语种英语
WOS记录号WOS:000266153700019
公开日期2011-09-09
源URL[http://ir.qibebt.ac.cn//handle/337004/452]  
专题青岛生物能源与过程研究所_材料生物技术研究中心
作者单位Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714
Li, Qiang,He, Yu-Cai,Xian, Mo,et al. Improving enzymatic hydrolysis of wheat straw using ionic liquid 1-ethyl-3-methyl imidazolium diethyl phosphate pretreatment[J]. BIORESOURCE TECHNOLOGY,2009,100(14):3570-3575.
APA Li, Qiang.,He, Yu-Cai.,Xian, Mo.,Jun, Gao.,Xu, Xin.,...&Li, Liang-Zhi.(2009).Improving enzymatic hydrolysis of wheat straw using ionic liquid 1-ethyl-3-methyl imidazolium diethyl phosphate pretreatment.BIORESOURCE TECHNOLOGY,100(14),3570-3575.
MLA Li, Qiang,et al."Improving enzymatic hydrolysis of wheat straw using ionic liquid 1-ethyl-3-methyl imidazolium diethyl phosphate pretreatment".BIORESOURCE TECHNOLOGY 100.14(2009):3570-3575.

入库方式: OAI收割

来源:青岛生物能源与过程研究所

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