A Comparison of the Bioethanol Production from Suweg (Amorphophallus campanulatus) through Separate Hydrolysis and Fermentation as well as Simultaneous Saccharification and Fermentation Using Saccharomyces cerevisiae

Abstract Suweg has the potential to develop bioethanol because of the high starch content. This is a form of ethanol produced from living organisms. The processes used include separate hydrolysis and fermentation (SHF) as well as simultaneous saccharification and fermentation (SSF). Furthermore, the components utilised in this study include StargenTM 002 (1.5%, w/w) for hydrolysis, Saccharomyces cerevisiae for fermentation at a temperature, and PH of 30ºC and 4.5 respectively, with varying starch concentrations (150-250 gL−1). The results showed the highest ethanol yield of 89.57 and 99.52 gL−1 from SHF and SSF, respectively from a suweg concentration of 200 gL−1 treated for 54 h. Meanwhile, 250 gL−1 samples attained 62.22; 99.57; and 101.56 gL−1, respectively. Therefore, SSF method provided a more efficient process for producing bioethanol using the 250 gL−1 concentration, although the increase from 200 gL−1 to 250 gL−1 only produced a 1.96% higher yield.