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Comparison of Corn Stover Pretreatments with Lewis Acid Catalyzed Choline Chloride, Glycerol and Choline Chloride-Glycerol Deep Eutectic Solvent
Zhu, Yuan1,2; Qi, Benkun2; Liang, Xinquan1; Luo, Jianquan2,3; Wan, Yinhua2,3
2021-04-01
Source PublicationPOLYMERS
Volume13Issue:7Pages:14
AbstractHerein, corn stover (CS) was pretreated by less corrosive lewis acid FeCl3 acidified solutions of neat and aqueous deep eutectic solvent (DES), aqueous ChCl and glycerol at 120 degrees C for 4 h with single FeCl3 pretreatment as control. It was unexpected that acidified solutions of both ChCl and glycerol were found to be more efficient at removing lignin and xylan, leading to higher enzymatic digestibility of pretreated CS than acidified DES. Comparatively, acidified ChCl solution exhibited better pretreatment performance than acidified glycerol solution. In addition, 20 wt% water in DES dramatically reduced the capability of DES for delignification and xylan removal and subsequent enzymatic cellulose saccharification of pretreated CS. Correlation analysis showed that enzymatic saccharification of pretreated CS was highly correlated to delignification and cellulose crystallinity, but lowly correlated to xylan removal. Recyclability experiments of different acidified pretreatment solutions showed progressive decrease in the pretreatment performance with increasing recycling runs. After four cycles, the smallest decrease in enzymatic cellulose conversion (22.07%) was observed from acidified neat DES pretreatment, while the largest decrease (43.80%) was from acidified ChCl pretreatment. Those findings would provide useful information for biomass processing with ChCl, glycerol and ChCl-glycerol DES.
Keywordlewis acid choline chloride glycerol deep eutectic solvent lignocellulosic pretreatment
DOI10.3390/polym13071170
Language英语
Funding ProjectNational Key R&D Program of China[2018YFB1501701] ; Science and Technology Service Network Program of Chinese Academy of Sciences[KFJ-STS-QYZX-096]
WOS Research AreaPolymer Science
WOS SubjectPolymer Science
Funding OrganizationNational Key R&D Program of China ; Science and Technology Service Network Program of Chinese Academy of Sciences
WOS IDWOS:000638772100001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48436
Collection中国科学院过程工程研究所
Corresponding AuthorQi, Benkun; Liang, Xinquan
Affiliation1.Guangxi Univ, Sch Light Ind & Food Engn, Nanning 530004, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Yuan,Qi, Benkun,Liang, Xinquan,et al. Comparison of Corn Stover Pretreatments with Lewis Acid Catalyzed Choline Chloride, Glycerol and Choline Chloride-Glycerol Deep Eutectic Solvent[J]. POLYMERS,2021,13(7):14.
APA Zhu, Yuan,Qi, Benkun,Liang, Xinquan,Luo, Jianquan,&Wan, Yinhua.(2021).Comparison of Corn Stover Pretreatments with Lewis Acid Catalyzed Choline Chloride, Glycerol and Choline Chloride-Glycerol Deep Eutectic Solvent.POLYMERS,13(7),14.
MLA Zhu, Yuan,et al."Comparison of Corn Stover Pretreatments with Lewis Acid Catalyzed Choline Chloride, Glycerol and Choline Chloride-Glycerol Deep Eutectic Solvent".POLYMERS 13.7(2021):14.
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