PEMBUATAN BIOETANOL DARI AMPAS SAGU DENGAN PROSES HIDROLISIS ASAM DAN MENGGUNAKAN Saccharomyces cerevisiae

Edit
Abstract: A research concerning production bioethanol from sago’s waste by acidic hydrolysis process and by means Sacharomyces cerevisiae was done. The objective of the research is to find out appopriate acid concentration and heating time in course of sago’s waste hydrolysis and to observe the influence of fermentation time toward change of medium pH , cell amount, and bioethanol concentration. Sample was hydrolyzed with HCl and H2SO4 ( 1 : 10 w/v) for 0, 30, 60, 90  120, and 150  minutes and acid concentration variation were 0,1 N, 0,2 N, 0,3 N, 0,4 N, and 0,5 N. Optimum reduction sugar be produced from the research is 4.5 g/L with use 0.3 N sulfuric acid with heating time 120 minute. Hydrolysates produced from the hydrolysis were followed by fermentation. During such fermentation there was decrease in the pH of medium  and increase of  cell’s number. The optimum ethanol production at the fermentation time was 4 days with concentrations 7,7 %.
Keywords: Bioethanol, Sago’s waste, Acid Hidrolysis, fermentation,  Sacharomyces cerevisiae
Penulis: Daniel De Idral, Marniati Salim, dan Elida Mardiah
Kode Jurnal: jpkimiadd120009

Artikel Terkait :

Jp Kimia dd 2012