Pemanfaatan Limbah Tandan Kosong Kelapa Sawit (Tkks) untuk Produksi Etanol

Palm oil empty fruit bunches (EFB) waste contains ±45% cellulose which can be hydrolyzed into simple sugars using hydrochloric acid (HCl) and fermented into ethanol. The objective of this study was to determine the optimum HCl concentration and hydrolysis time for ethanol production. HCl concentration level used was 2N and 3N, and the variation of hydrolysis time period was 2 hourse and 3 hourse. The hydrolysis product was then fermented using Saccharomyces cerevisae. The results showed that the optimum condition of EFB hydrolysis was obtained from concentration 3N HCl during 2 hourse process with 16,34% of reducing sugar. The optimum ethanol content was 0.30% which was abtainst after 3 day process. Mean while the optimum of carbon dioxide (CO2) was reached on the three day