Journal of Fundamentals of Renewable Energy and Applications
Open Access

Comparison of different kinetics for modeling of all kinds of bioethanol production

International Congress and Expo on Biofuels & Bioenergy

August 25- 27, 2015 Valencia, Spain

Roghayeh Khalseh

Posters-Accepted Abstracts: J Fundam Renewable Energy Appl

Abstract :

Fermentation is typically modelled by kinetic equations giving the time evolutions for biomass, substrate, and product
concentrations. In the present study, production of bioethanol from glucose substrate and Saccharomyces cerevisiae (S.
cerevisiae) as a biomass was investigated through a batch fermentation process. Time variation of the S. cerevisiae growth,
glucose utilization and ethanol productivity was described using different kinetic models and analytically solution. The kinetic
constants were determined through the fitting of experimental data with the kinetic model equations. The results demonstrated
that the Monod, Logistic and Luedeking-Piret served as the best describing models for S. cerevisiae growth, glucose, and ethanol
concentrations, respectively. Moreover, determination of substrate concentration according to time via analytical solution of
equation was a hallmark result of this research.