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Effect of supramolecular structural changes during the crystalline transformation of cellulose on its enzymatic hydrolysis

文献类型：期刊论文

作者Sang, Shen2; Zhuang, Xinshu3; Chen, Haiyan2; Qin, Yuyue2; Cao, Jianxin2; Fan, Fangling1; Lan, Tianqing2
刊名INDUSTRIAL CROPS AND PRODUCTS
出版日期2022-06-01
卷号180页码:11
关键词Cellulose allomorphs Enzymatic hydrolysis Cellulase adsorption capacity Interchain hydrogen bonds C-6 hydroxymethyl conformation
ISSN号0926-6690
DOI10.1016/j.indcrop.2022.114687
通讯作者Fan, Fangling(fangling.fan@outlook.com) ; Lan, Tianqing(lantianqing_8019@163.com)
英文摘要Currently, the main problems in cellulose conversion to glucose are the low enzymatic hydrolysis efficiency and the high cellulase cost. In this study, cellulose I allomorph substrates were from p-toluenesulfonic acid (PT), dilute sulfuric acid (DA) and sulfite (SP) treated cellulose substrates, and cellulose II allomorph were prepared by mercerization. XRD, NMR, FTIR and molecular docking were used to investigate the effect of cellulose allomorphs on hydrolysis efficiency. The results showed that cellulose II allomorph had a lower cellulase adsorption capacity and higher hydrolysis efficiency. This was because cellulose II allomorph owned gt conformation, and less tg and gg conformations of C-6 hydroxymethyl, causing the reduction of interchain hydrogen bonds and the increase in hydrolysis efficiency (PT, DA and SP: from 62.04%, 65.62% and 63.21% to 83.23%, 89.24% and 87.65%, respectively). This study provided theoretical supports for further understanding the effect of cellulose allomorphs on enzymatic hydrolysis.
WOS关键词TRICHODERMA-REESEI ; BINDING DOMAIN ; CELLOBIOHYDROLASE-I ; BETA-GLUCOSIDASE ; ENDOGLUCANASE I ; CATALYTIC CORE ; NANOCRYSTALS ; ALLOMORPHS ; CONVERSION ; CONFORMATIONS
资助项目International Science and Technology Innovation Cooperation Program of the State Key Research and Development Program[2021YFE0114400] ; National Natural Science Foundation of China[22168020] ; National Natural Science Foundation of China[21766014]
WOS研究方向Agriculture
语种英语
WOS记录号WOS:000789620400001
出版者ELSEVIER
资助机构International Science and Technology Innovation Cooperation Program of the State Key Research and Development Program ; National Natural Science Foundation of China
源URL[http://ir.giec.ac.cn/handle/344007/36382]  
专题中国科学院广州能源研究所
通讯作者Fan, Fangling; Lan, Tianqing
作者单位1.Yunnan Normal Univ, Sch Energy & Environm Sci, Kunming 650500, Yunnan, Peoples R China
2.Kunming Univ Sci & Technol, Fac Food Sci & Engn, 727 South Jingming Rd, Kunming 650500, Yunnan, Peoples R China
3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Sang, Shen,Zhuang, Xinshu,Chen, Haiyan,et al. Effect of supramolecular structural changes during the crystalline transformation of cellulose on its enzymatic hydrolysis[J]. INDUSTRIAL CROPS AND PRODUCTS,2022,180:11.
APA Sang, Shen.,Zhuang, Xinshu.,Chen, Haiyan.,Qin, Yuyue.,Cao, Jianxin.,...&Lan, Tianqing.(2022).Effect of supramolecular structural changes during the crystalline transformation of cellulose on its enzymatic hydrolysis.INDUSTRIAL CROPS AND PRODUCTS,180,11.
MLA Sang, Shen,et al."Effect of supramolecular structural changes during the crystalline transformation of cellulose on its enzymatic hydrolysis".INDUSTRIAL CROPS AND PRODUCTS 180(2022):11.

入库方式： OAI收割

来源：广州能源研究所

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