The effectiveness of pretreated biomass using autoclave heat shock with H2SO4 for bioethanol production in simultaneous saccharification and fermentation.

Autor: Djohan, Apridah Cameliawati, Perwitasari, Urip, Subiyanto, Bambang, Yopi, Lisdiyanti, Puspita
Předmět:
Zdroj: AIP Conference Proceedings; 2023, Vol. 2956 Issue 1, p1-8, 8p
Abstrakt: Agroindustry waste such as sugarcane bagasse and empty fruit bunch are a sustainable carbon source for bioenergy production. Yeast converts carbon sources from biomass into bioethanol through fermentation. However, the main content in the biomass is lignocellulose. Therefore, biomass pretreatment was needed to degrade lignocellulose into reducing sugars. For that reason, the main purpose of this research is transforming the raw biomass bagasse and EFB as substrate in Submerged State Fermentation (SSF) for bioethanol production by indigenous yeast from Indonesia. Pretreatment of bagasse and EFB by sulfuric acid successfully degrade lignocellulose into reducing sugar. In addition, saccharification from bagasse and EFB using commercial cellulase and xylanase have been resulted high effectivity for sugar reduction production. Furthermore, fermentation of these sugar by Saccharomyces cerevisiae BTCC 12 in SSF can produce bioethanol. The ethanol concentration from bagasse fermentation was detected 0.29 g/L at 24 hours from total sugar amount such as 2.613 g/L. On the other hand, the process SSF for 24 hours fermentation EFB produced ethanol with concentration 0.854 g/L from total sugar 5.607 g/L. Furthermore, the ethanol yield for bagasse reached 21.76%., the yield of ethanol from EFB fermentation is higher than bagasse, it is 28.86%. These results demonstrate the effectiveness of biomass pretreatment in the production of bioethanol from biomass. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index