Enhanced delignification of cornstalk by employing superbase TBD in ionic liquids
文献类型：期刊论文
| 作者 | Xu, Junli1,2; Yao, Xiaoqian1; Zhou, Qing1; Lu, Xingmei1; Zhang, Suojiang1 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2014 |
| 卷号 | 4期号:52页码:27430-27438 |
| 关键词 | LIGNOCELLULOSIC BIOMASS ENZYMATIC-HYDROLYSIS CELLULOSE PRETREATMENT DISSOLUTION WOOD LIGNIN DIGESTIBILITY EXTRACTION SOLVENTS |
| ISSN号 | 2046-2069 |
| 其他题名 | RSC Adv. |
| 中文摘要 | The delignification of cornstalk was efficiently accomplished by using 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as an additive in 1-allyl-3-methylimidazolium acetate ([Amim][OAc]). When 1.0 wt% TBD was added to [Amim][OAc], the cellulose and lignin contents of cellulose rich material (CRM) were achieved to be 39.12% and 6.74%, respectively. With the addition of 0.1 wt% TBD to [Amim][OAc], the lignin content of CRM could even be reduced to 2.06% without considering the cellulose content. There could be two possible reasons for the enhanced delignification of cornstalk by adding TBD in [Amim][OAc]. One is the alkalinity and exposed nitrogen atoms of TBD, which make it an efficient dibasic nucleophile and helpful for the lignin beta-O-4 ether bond cleavage reaction. The other one is the decreased interaction energy of [Amim](+) and [OAc](-) from 99.1 kcal mol(-1) to 89.2 kcal mol(-1) with the addition of TBD, which makes the [Amim](+) and [OAc](-) easier to interact with the cornstalk components. Simultaneously, the CRM regenerated from the system of [Amim][OAc] + TBD was effectively hydrolyzed by cellulase with 98% enzymatic hydrolysis yield, which proved that the cellulose structures were highly disrupted and lignin was significantly removed in the CRM. |
| 英文摘要 | The delignification of cornstalk was efficiently accomplished by using 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as an additive in 1-allyl-3-methylimidazolium acetate ([Amim][OAc]). When 1.0 wt% TBD was added to [Amim][OAc], the cellulose and lignin contents of cellulose rich material (CRM) were achieved to be 39.12% and 6.74%, respectively. With the addition of 0.1 wt% TBD to [Amim][OAc], the lignin content of CRM could even be reduced to 2.06% without considering the cellulose content. There could be two possible reasons for the enhanced delignification of cornstalk by adding TBD in [Amim][OAc]. One is the alkalinity and exposed nitrogen atoms of TBD, which make it an efficient dibasic nucleophile and helpful for the lignin beta-O-4 ether bond cleavage reaction. The other one is the decreased interaction energy of [Amim](+) and [OAc](-) from 99.1 kcal mol(-1) to 89.2 kcal mol(-1) with the addition of TBD, which makes the [Amim](+) and [OAc](-) easier to interact with the cornstalk components. Simultaneously, the CRM regenerated from the system of [Amim][OAc] + TBD was effectively hydrolyzed by cellulase with 98% enzymatic hydrolysis yield, which proved that the cellulose structures were highly disrupted and lignin was significantly removed in the CRM. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | LIGNOCELLULOSIC BIOMASS ; ENZYMATIC-HYDROLYSIS ; CELLULOSE ; PRETREATMENT ; DISSOLUTION ; WOOD ; LIGNIN ; DIGESTIBILITY ; EXTRACTION ; SOLVENTS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000338643500044 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/10999]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Junli,Yao, Xiaoqian,Zhou, Qing,et al. Enhanced delignification of cornstalk by employing superbase TBD in ionic liquids[J]. RSC ADVANCES,2014,4(52):27430-27438. |
| APA | Xu, Junli,Yao, Xiaoqian,Zhou, Qing,Lu, Xingmei,&Zhang, Suojiang.(2014).Enhanced delignification of cornstalk by employing superbase TBD in ionic liquids.RSC ADVANCES,4(52),27430-27438. |
| MLA | Xu, Junli,et al."Enhanced delignification of cornstalk by employing superbase TBD in ionic liquids".RSC ADVANCES 4.52(2014):27430-27438. |
入库方式： OAI收割
来源：过程工程研究所
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