文献类型：期刊文献

英文题名：Enhanced Enzymatic Hydrolysis of Corncob by Synthesized Enzyme-Mimetic Magnetic Solid Acid Pretreatment in an Aqueous Phase

作者：Xu, Qing[1,3];Yang, Wei[1,2,3];Liu, Guifeng[2];Liang, Cuiyi[2];Lu, Si[2];Qi, Zhiqiang[2];Hu, Jinke[2];Wang, Qiong[2];Qi, Wei[2]

机构：[1]Guangdong Ocean Univ, Shenzhen Inst, Shenzhen 518108, Peoples R China;[2]Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Key Lab New & Renewable Energy Res & De, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China;[3]Guangdong Ocean Univ, Sch Mech & Power Engn, Zhanjiang 524000, Peoples R China

年份：2019

卷号：4

期号：18

起止页码：17864

外文期刊名：ACS OMEGA

收录：SCI-EXPANDED(收录号：WOS:000493751800029)、、Scopus(收录号：2-s2.0-85073880662)、WOS

基金：This work was supported financially by the National Natural Science Foundation of China (51676193 and 51861145103), the National Key Research and Development Program of China (2018YFC1901201), the Youth Innovation Promotion Association, CAS (2017401), the Municipal Science and Technology Program of Guangzhou (201804010187), and the Shenzhen Science and Technology Creation Commission Foundation (JCYJ20170818111529172). W.Q. also wants to give sincere thanks to Hubei Key Laboratory of Industrial Fume & Dust Pollution Control, which provided the foundation (HBIK2018-04) to this research.

语种：英文

外文摘要：A novel magnetic carbon-based solid acid catalyst (C350-Cl) was synthesized through a simple impregnation-carbonization process and used for the pretreatment of corncob in an aqueous medium. Under the optimized pretreatment reaction conditions, the yield of pentose reached 91.6% with a hemicellulose removal rate of 91.7%, and the subsequent enzymatic digestibility of the pretreated corncob residue reached 90.0% at 48 h. C350-Cl is a magnetic enzyme-mimetic solid acid catalyst, and its catalytic behavior is similar to those of enzymes. In addition, the catalyst is also an excellent carrier for Fe and Cl in that the Fe3+ and Cl- can be released slowly in the pretreatment to assist the hydrolysis of lignocellulose. Compared with the traditional method with other catalysts, this hydrolysis process is suitable for the effective and sustainable saccharification of lignocellulose for producing fermentable sugar.