Pectinex exhibited the best saccharification efficiency under the given conditions. For 1 h of reaction time, a sugar yield of $70.4% (based on the total carbohydrate of the residual biomass) was obtained at pH 5.5 and 45 °C. Pectinex has the ability to breakdown undisrupted cell wall carbohydrates of residual biomass. Also, to hydrolyze the major carbohydrate (starch), no additional enzymes were needed since Pectinex from Aspergillus contains a-amylases, cellobiases, and xylanases