PRODUKSI BIOETANOL DARI BIJI BUAH NANGKA (Artocarpus heterophyllus) MELALUI PROSES HIDROLISIS ASAM SULFAT DAN FERMENTASI

Abstract

Fermentation  from jackfruit seeds (Artocarpus heterophyllus) through the Process Using Acid Hydrolysis. Bioethanol is ethanol fermentation process biomass results with the help of microorganisms. Raw materials for bioethanol is sugary materials, starchy and fibrous. This study tries  to make bioethanol from jackfruit seeds (Artocarpus heterophyllus) which is a starchy material. during these jackfruit seeds into consumption only partly public and partly not used. The purpose of this study was to determine the optimum concentration of H₂SO₄on the hydrolysis process and determine the optimum fermentation time in the fermentation process. The process of making ethanol in two steps, namely acid hydrolysis and fermentation. Cassava peel hydrolyzed by using a solution of H₂SO₄ in a variety of variable concentrations (0.1, 0.5 and 1 M) at a temperature of 100^oC for 1 hour. Then a solution of the hydrolysis fermented with various variables days (1, 2, 3, 4, 5, 6 and 7 days). The result showed that the optimum concentration of H₂SO₄ solution for the hydrolysis reaction is 1 M at a temperature of 100^oC for 1 hour and the optimum fermentation time in the fermentation process is on day 4 where the produced ethanol at 13,19% v/v.

Key words : Fermentation, Artocarpus heterophyllus, Hydrolysis