Bioethanol production from bamboo pulp using enzymatic sacharificationwith several concentration of surfactant

Abstract

Bioethanol is one of new alternative and renewable energy to decrease energy crisis and negative effect of fossil fuels usage. Lignocellulosic estimate to be produced in 10-50 billion tons/year as dry matter. Cellulose component in lignocelluloses can be converted into glucose as a feedstock for ethanol fermentation. This paper contains the results of study on the conversion of lignocellulose to glucose and ethanol in the process of enzymatic sacharification. Bamboo is lignocellulosic raw materials that can be used for bioethanol production. This research was conducted to utilize bamboo waste to make bioethanol through enzymatic hydrolysis process and determine the effect of surfactant and substrat on the produced bioethanol. Surfactants Tween 20 that were used in this research were 0-4% (v) and the amount of enzyme which was added were 10 FPU/g substrate. On the other hand, substrate concentration were 20, 25, and 30 % (dw) added to the sacharification. Addition of 1% (v) surfactant could increase the reducing sugar up to 90% until 3% concentration and subsequently decrease. Enhancement of reducing sugar level was not followed by the increasing of ethanol level at some treatment so that the linear trendline was different between reducing sugar level and ethanol level.