Effect of Temperature on Bioethanol Production from Banana Hydrolysate using Saccharomyces cerevisiae

Sharon, Khiong (2022) Effect of Temperature on Bioethanol Production from Banana Hydrolysate using Saccharomyces cerevisiae. [Final Year Project Report] (Unpublished)

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Abstract

Energy security and environmental safety are two key challenges in today's globe that have increased demand for an alternative and environmentally friendly energy source. Bioethanol has the potential to be a better biofuel than fossil fuels. Sugars, starch, and lignocellulosic biomass are the biomass resources being researched for bioethanol synthesis. Banana is one of the most important food crops in the world. Banana stem, which is lignocellulosic biomass, can be used as a substrate for microorganisms to produce secondary metabolites. The aim of this project is to study the effect of temperature on bioethanol production from the banana hydrolysate. The banana stem was hydrolysed enzymatically and used as the substrate for bioethanol fermentation by Saccharomyces cerevisiae. The temperature was ranged from 30 ℃ to 45 ℃. The cell growth and ethanol concentration were measured throughout the fermentations. The highest bioethanol production was achieved at 30 ℃ which was 1.405 g/L. This study contributes to a better understanding of bioethanol production from banana waste.

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