Pretreatment of corn stover by acidic and basic choline chloride solutions for enzymatic hydrolysis
文献类型：期刊论文
| 作者 | Qi, Benkun1; Wang, Zhenwu1; Luo, Jianquan1,2; Wan, Yinhua1,2 |
| 刊名 | CELLULOSE
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 28期号:16页码:10127-10141 |
| 关键词 | Choline chloride Pretreatment Enzymatic hydrolysis Corn stover |
| ISSN号 | 0969-0239 |
| DOI | 10.1007/s10570-021-04163-4 |
| 英文摘要 | As a cheap, biodegradable, and nontoxic chemical, choline chloride (ChCl) is widely used in animal feed. In this study, acid and alkali catalyzed ChCl pretreatments of corn stover (CS) were investigated. Compared with single aqueous ChCl pretreatment, H2SO4 acidified aqueous ChCl pretreatment was more effective in removing lignin (69.5%) and xylan (84.9%). NaOH alkalified aqueous ChCl pretreatment demonstrated better performance of delignification (76.8%) but weaker capability of removing xylan (46.2%) than acidified aqueous ChCl pretreatment. Following enzymatic digestibility of pretreated CS, glucose yield from acidified ChCl pretreatment was 72.1%, significantly lower than that of alkalified ChCl pretreatment (89.4%). However, the highest glucose yield of 98.6% resulted from solitary alkali pretreatment. Correlation studies between change in physico-chemical properties of pretreated solids and corresponding enzymatic digestibility indicated high delignification and bigger cellulose crystallite size were mainly responsible for high enzymatic hydrolysis efficiency. Additionally, the properties of extracted lignin from single and combined pretreatments with ChCl and alkali or acid were analyzed. Acidified ChCl pretreatment increased, whereas alkaline ChCl pretreatment decreased molecular weight and phenolic hydroxyl groups of separated lignin in comparison to individual acid and alkali pretreatment. These findings would provide useful information in understanding biomass pretreatments with aqueous ChCl. |
| WOS关键词 | DEEP EUTECTIC SOLVENTS ; ALKALINE ; EXTRACTION ; CELLULOSE |
| 资助项目 | National Key R&D Program of China[2018YFB1501701] ; Science and Technology Service Network Program of Chinese Academy of Sciences[KFJ-STS-QYZX-096] |
| WOS研究方向 | Materials Science ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000698166300001 |
| 出版者 | SPRINGER |
| 资助机构 | National Key R&D Program of China ; Science and Technology Service Network Program of Chinese Academy of Sciences |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50266]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Qi, Benkun; Wan, Yinhua |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Dept Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qi, Benkun,Wang, Zhenwu,Luo, Jianquan,et al. Pretreatment of corn stover by acidic and basic choline chloride solutions for enzymatic hydrolysis[J]. CELLULOSE,2021,28(16):10127-10141. |
| APA | Qi, Benkun,Wang, Zhenwu,Luo, Jianquan,&Wan, Yinhua.(2021).Pretreatment of corn stover by acidic and basic choline chloride solutions for enzymatic hydrolysis.CELLULOSE,28(16),10127-10141. |
| MLA | Qi, Benkun,et al."Pretreatment of corn stover by acidic and basic choline chloride solutions for enzymatic hydrolysis".CELLULOSE 28.16(2021):10127-10141. |
入库方式： OAI收割
来源：过程工程研究所
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