文献类型：期刊文献

英文题名：Effective Cleavage of beta-1,4-Glycosidic Bond by Functional Micelle with L-Histidine Residue

作者：Liao, Xiao-Hong Liu, Ying Peng, Xiao Mi, Chun Meng, Xiang-Guang

第一作者：Liao, Xiao-Hong

通信作者：Meng, XG[1]

机构：[1]Sichuan Univ, Coll Chem, Key Lab Green Chem & Technol, Minist Educ, Chengdu 610064, Peoples R China;[2]Guizhou Inst Technol, Coll Chem Engn, Guiyang 550003, Peoples R China

第一机构：Sichuan Univ, Coll Chem, Key Lab Green Chem & Technol, Minist Educ, Chengdu 610064, Peoples R China

通信机构：corresponding author), Sichuan Univ, Coll Chem, Key Lab Green Chem & Technol, Minist Educ, Chengdu 610064, Peoples R China.

年份：2016

卷号：146

期号：7

起止页码：1249-1255

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20161702281512);Scopus(收录号：2-s2.0-84963756307);WOS:【SCI-EXPANDED(收录号:WOS:000378816600010)】；

基金：We gratefully acknowledge financial support from the National Natural Science Foundation of China (No. 21273156).

语种：英文

外文关键词：Kinetics; Cellulose; Biomass; Catalysis; Hydrolysis

摘要：A novel functional surfactant N (alpha)-dodecyl-l-histidine (NDH) was synthesized and its micelle was used as mimic of beta-1,4-endoglucanase to catalyzed the hydrolysis of methyl-beta-d-cellobioside (MCB) under relatively low temperatures (80-110 A degrees C). The results showed that the micelle of NDH displayed excellent catalytic activity for the cleavage of beta-1,4-glycosidic bond and the formation of l-histidine-5-d-glucopyranosyl. The micelle-catalyzed first-order reaction rate constant k (m) of degradation of MCB was calculated. The conversion of MCB and selectivity of reducing sugars (glucose and fructose) could reach 58.9 and 87.1 %, respectively, for a reaction time of 10 h at pH 4.0 and 110 A degrees C. In NDH micelle-catalyzed reaction sugar ester was deduced as the chief product. The reaction pathways of MCB hydrolysis were proposed and the activation energy Ea for the hydrolysis was calculated.