作者
Xianzhi Meng, Qining Sun, Matyas Kosa, Fang Huang, Yunqiao Pu, Arthur J Ragauskas
发表日期
2016/9/6
期刊
ACS Sustainable Chemistry & Engineering
卷号
4
期号
9
页码范围
4563-4572
出版商
American Chemical Society
简介
Converting lignocellulosics to simple sugars for second generation bioethanol is complicated due to biomass recalcitrance, and it requires a pretreatment stage prior to enzymatic hydrolysis. In this study, native, pretreated (acid and alkaline) and partially hydrolyzed poplar and switchgrass were characterized by using Simons’ staining for cellulose accessibility, GPC for degree of polymerization (DP), and FTIR for chemical structure of plant cell wall. The susceptibility of the pretreated biomass to enzymatic hydrolysis could not be easily predicted from differences in cellulose DP and accessibility. During hydrolysis, the most significant DP reduction occurred at the very beginning of hydrolysis, and the DP began to decrease at a significantly slower rate after this initial period, suggesting an existence of a synergistic action of endo- and exoglucanases that contribute to the occurrence of a “peeling off” mechanism …
学术搜索中的文章
X Meng, Q Sun, M Kosa, F Huang, Y Pu, AJ Ragauskas - ACS Sustainable Chemistry & Engineering, 2016