Sacarificación de residuos lignocelulósicos pretratados con peróxido de hidrógeno para la obtención de azúcares fermentables

Abstract

In the world there is a great consumption and dependency on fossil fuels, despite the great environmental damage that these causes, therefore, in recent years, alternative energy sources have been explored, which are more friendly to the environment such as liquid fuels of biological origin or biofuels. In this research, the conversion of fermentable sugars for the production of second generation ethanol from lignocellulosic biomasses was evaluated by evaluating three variables in the enzymatic hydrolysis stage. (percentage of solids, enzymatic charge and particle size) by using an experiment design 23 with triplicate in the central point using the response surface analysis in which the most significant variables in the enzymatic hydrolysis stage were observed were , percentage of solids and enzyme load since they presented values of p ˂ 0.05 in the study range at 95% confidence, and it was found that due to pretreatment with hydrogen peroxide, the recalcitrance of the lignocellulosic material decreased significantly.