Ionic liquid pretreatment to increase succinic acid production from lignocellulosic biomass

被引:30
作者
Wang, Caixia [1 ,2 ]
Yan, Daojiang [3 ,4 ]
Li, Qiang [2 ]
Sun, Wei [1 ]
Xing, Jianmin [2 ]
机构
[1] China Acad Chinese Med Sci, Inst Chinese Mat Med, Beijing 100700, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
[3] Chinese Acad Med Sci, Inst Mat Med, State Key Lab Bioact Subst & Funct Nat Med, Beijing 100050, Peoples R China
[4] Peking Union Med Coll, Beijing 100050, Peoples R China
基金
国家高技术研究发展计划(863计划); 美国国家科学基金会;
关键词
Ionic liquid; Lignocellulosic biomass; Inhibition; Succinic acid; Fermentation; SACCHAROMYCES-CEREVISIAE; ENZYMATIC-HYDROLYSIS; SUGARCANE BAGASSE; FERMENTATION; CELLULOSE; ETHANOL;
D O I
10.1016/j.biortech.2014.09.045
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
In this study, pinewood and corn stover pretreated with the ionic liquid (IL) 1-allyl-3-methylimidazolium chloride (AmimCl) were used as a feedstock for succinic acid production. Results reveal that 5% (v/v) AmimCl inhibited bacterial growth, whereas 0.01% (v/v) AmimCl inhibited succinic acid production. AmimCl was effective in extracting cellulose from pinewood and in degrading pinewood into a uniform pulp, as revealed by scanning electron microscopy (SEM). The rate of enzymatic hydrolysis of pinewood extract reached 72.16%. The combinations of AmimCl pretreatment with steam explosion or with hot compressed water were effective in treating corn stover, whereas AmimCl treatment alone did not result in a significant improvement. Pinewood extract produced 20.7 g/L succinic acid with an average yield of 0.37 g per gram of biomass. Workflow calculations indicated pine wood pretreated with IL has a theoretical yield of succinic acid of 57.1%. IL pretreatment led to increase in succinic acid yields. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:283 / 289
页数:7
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