Open AccessBioethanol Purification from Fermentation of Suweg Starch Using Two Stage Distillation Method
Author(s) -
H Hargono,
Bakti Jos,
Purwanto Purwanto,
Siswo Sumardiono,
MF Zakaria
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1053/1/012114
Subject(s) - distillation , fermentation , chromatography , biofuel , starch , hydrolysis , materials science , ethanol , chemistry , butanol , waste management , food science , organic chemistry , engineering
This study aims to employ two-stage distillation in the purification of fermented ethanol. Furthermore, 200g/L Suweg starch was fermented by Simultaneous Saccharification and Fermentation (SSF) method using Stargen TM 002 and Saccharomyces cerevisiae at a concentration of 1.5% (w/w) and 1.10% (w/w), respectively. Therefore, 99.52 g/L or 13.82% bioethanol was produced and further purified through a distillation method. Subsequently, the first stage was performed in a column without filling material, while the second was in a column with glass ball-shaped material (marbles). This two phase exposure was conducted to expand the contact between the bioethanol-water vapor mixture and the suffing material. In addition, the temperature was set at 78ºC, while the duration was varied at 45, 60, 75, and 90 minutes. Therefore, the samples were analyzed using high-performance liquid chromatography (HPLC) and the maximum yield of 94.6% was produced at 75 minutes.