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Improving enzymatic hydrolysis of wheat straw using ionic liquid 1-ethyl-3-methyl imidazolium diethyl phosphate pretreatment
Li, Qiang; He, Yu-Cai; Xian, Mo; Jun, Gao; Xu, Xin; Yang, Jian-Ming; Li, Liang-Zhi
2009-07-01
发表期刊BIORESOURCE TECHNOLOGY
ISSNISSN: 0960-8524
卷号100期号:14页码:3570-3575
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.; 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.
文章类型Article
关键词Wheat Straw Ionic Liquids 1-ethyl-3-methyl Imidazolium Diethyl Phosphate Pretreatment Enzymatic Hydrolysis
学科领域生物基化学品
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2009.02.040
关键词[WOS]CELLULOSE FUNCTIONALIZATION ; LIGNOCELLULOSIC BIOMASS ; SACCHARIFICATION ; SPECTROSCOPY ; SOLVATION
收录类别SCI
语种英语
WOS研究方向Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS类目Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号WOS:000266153700019
引用统计
被引频次:224[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/452
专题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
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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.
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