Effect of Operating Conditions on Molasses fermentation for Bioethanol production (original) (raw)
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IOP conference series, 2019
Sugarcane molasses is a by-product of sugarcane products that can be used as bioethanol production. Bioethanol is ethanol produced through a fermentation process that can be done by various microorganisms such as Saccharomyces cerevisiae. Commercial instant dry yeast on this fermentation was chosen because it can be directly used as a starter to simplify the production process and reduce the bacterial contamination risk. The sugar industry in West Java is one of the sugarcane processing industries that produce molasses in Indonesia. Then molasses were processed into bioethanol. However, the ethanol content on bioethanol production in this industry is low (± 4-6%). Some factors can cause low ethanol production such as the presence of mineral contents and sugar concentrations in molasses. The aim of this study is to investigate the effect of H 2 SO 4 pretreatment and sugar concentration on ethanol production. Three level of sugar concentration i.e. 20%, 25% and 30% Brix were compared for ethanol production using with and without pretreated molasses. The obtained data were analyzed statistically using Analysis of Variance (ANOVA). Under the best condition (30% sugar concentration with H 2 SO 4 pretreatment), the ethanol concentration could be increased by 3.5-5.5%.
IOP Conference Series: Earth and Environmental Science, 2018
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Experimental Synthesis of Ethanol from Sugar Cane Juice Molasses
http://www.gijash.com/archive\_gijash\_vol.1\_issue1.html, 2017
Ethanol synthesis by using raw feed stock is being widely explored. Production of ethanol from waste food grains, fruit wastes, vegetable wastes, and sugar industry byproducts is being carried out on experimental, pilot plant and in some cases industrial scale. Ethanol has huge potential as fuel and is main compound in alcoholic beverages. It is most often used as a motor fuel, mainly as a bio fuel additive for gasoline. Bio ethanol can be made from very common crops such as sugar cane, potato, manioc and corn. In current research sugar molasses is used for ethanol synthesis. Key words:Bacteria, molasses, purity, incubation, slant, fermentation.