Cost Analysis of Substrates Used for Ethanol Fermentation by Saccharomyces Cerevisiae

Chemical Engineering

Ethanol fermentation is a biological process which converts sugars such as glucose, fructose and sucrose intro cellular energy, producing ethanol and carbon-dioxide as a byproduct. It is a metabolic process that converts sugar to different products like acids gases or alcohol is known as fermentation. Metabolism is the set of life –sustaining chemical transformations within the cells of living organisms. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments. A huge number of substrates are used for ethanol production namely, grapes, apples, pears, honey, potatoes, rice, sugarcane, glucose, cassava etc. With the increasing demand of ethanol for numerous uses, research needs to be done to compare the different routes for ethanol production economically. Cost comparison for three such substrates is done in this study. The substrates chosen for the study are glucose, Jaggery and sugarcane molasses. After the experiments and cost analysis it was found that jaggery is the most cost effective for alcohol production and molasses is better than the other two for producing yeast

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