The potency of Mentega Cassava (Manihot esculenta) Variety Peels Waste as Raw Material for Bioethanol by Enzymatic Hydrolisis

Mentega cassava skin waste can be used as an energy source in the form of bioethanol. Ethanol (C2H5OH) is the result of conversion from sugar fermentation using the help of microorganisms. This study aims to determine the levels of bioethanol produced from butter cassava peels obtained from Ibun district, Bandung regency through enzymatic treatment. The research procedure started from pre-treatment of cassava peel waste as a substrate, enzymatic hydrolysis and fermentation. Enzymatic hydrolysis used Trichoderma viride isolates with 3 inoculum concentrations of 10%, 15% and 20%. Meanwhile, the fermentation process uses Saccharomyces cerevisiae isolates. The highest reducing sugar of 21.28 mg/L was produced by hydrolysis treatment for 60 hours and an inoculum concentration of 10%. The highest bioethanol content was 4.9 mg/L with a fermentation time of 96 hours.