玉米秸秆中的单糖或者寡糖的释放由于芳香族聚合物木质素阻遏纤维素酶进行糖解聚作用而效率地下.然而预处理作用可以有效地移除木质素或者打破木质素的结构,从而可以增强还原糖的释放.其过程主要包括2个生物转化程序:玉米秸秆中纤维素的水解产生还原糖,然后进行生物乙醇发酵生产过程.在该研究中,通过HPLC方法监测不同预处理方法处理玉米秸秆酶水解液中的成分,从而得到最佳的预处理方法.结果表明,磁力搅拌辅助CO2激光协同通气预处理方法的糖化效果高于其他预处理方法.%Release of monosaccharide or oligosaccharide from corn stover biomass is inefficient because lignin, an aromatic polymer, blocks the access of cellulase to sugar polymers. However, pretreatments can remove lignia and disrupt its structure, thereby enhancing reducing sugar release. It is a two-stage byconversion process: hydrolysis of cellulose in corn stover to produce reducing sugars, and fermentation of the reducing sugars to bioethanol. In this study, the chemical compositions of the cellulase hydrolysate of corn stover pretreated by different methods were detected by HPLC in order to find out the desirable pretreatment method. The results showed that the saccharification rate of CO2-laser treatment combined with aeration and magnetic stir (LAM) was higher than those of other pretreatment methods.
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