Abstract
AbstractIn the present study, a kinetic model was developed by batch fermentation for bioethanol production using Saccharomyces cerevisiae MTCC 171 from sorghum waste grains. For simulating the experimental value for biomass, ethanol production and substrate utilization, unstructured kinetic models were studied. Biomass production and bioethanol production were evaluated by Logistic Model and Luedeking Piret model respectively. The predicted values of the parameters from these models had good agreement with experimental data. Thus they were capable of calculating the fermentation profile of ethanol estimation from waste (jowar) sorghum grains. High values of coefficient of determination (R2) values of 0.978, 0.959 and 0.985 were found for cell biomass, product formation and raw material utilization. For scaling up of bioethanol production process with consistency from waste grains this kinetic model could be a very convenient tool.KeywordsWaste Sorghum grainBioethanolGrowth kineticsSubstrate utilization kineticsProduction kinetics
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