Therefore, in this study, to investigate characteristic conversion mechanism of carbohydrate components derived from lignocellulosic biomass, conversion of glucose and xylose (basic units of lignocellulosic biomass) depending on organosolv pretreatment conditions will be understood. Further, based on this understanding, understanding of hydrolysis and degradation of cellulose and hemicellulose will be progressed.
Monomeric sugars (glucose and xylose) and polymeric sugars (avicel PH-101, CF11 and ashless filter paper) were used as commercial standard materials. Organosolv pretreatment was conducted in 1 L stainless steel reactor using 50% (v/v) ethanol depending on various temperatures and catalyst concentrations. Monomeric sugars and its degradation products in liquid fraction were identified and quantified, and the chemical compositions and physicochemical characteristics of pretreated solid fraction were analyzed. In addition, to compare the characteristic conversion between the commercial and original cellulose, α-cellulose and holocellulose separated and purified from Liriodendron tulipifera will be used.
From this study, characteristic conversion mechanism of carbohydrate components during organosolv pretreatment will be understood in detail, and it will be helpful to effectively improve the organosolv pretreatment process.