A Mathematical Model for Ethanol Fermentation From Oil Palm Trunk Sap Using Saccharomyces Cerevisiae

Sultana, Sharmin and Norazaliza, Jamil and Saleh, E. A. M. and Yousuf, Abu and C. K. M., Faizal (2017) A Mathematical Model for Ethanol Fermentation From Oil Palm Trunk Sap Using Saccharomyces Cerevisiae. In: Journal of Physics: Conference Series, 1st International Conference on Applied & Industrial Mathematics and Statistics 2017 (ICoAIMS 2017), 8-10 August 2017 , Kuantan, Pahang, Malaysia. pp. 1-7., 890 (012050). ISSN 1742-6596

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This paper presents a mathematical model and solution strategy of ethanol fermentation for oil palm trunk (OPT) sap by considering the effect of substrate limitation, substrate inhibition product inhibition and cell death. To investigate the effect of cell death rate on the fermentation process we extended and improved the current mathematical model. The kinetic parameters of the model were determined by nonlinear regression using maximum likelihood function. The temporal profiles of sugar, cell and ethanol concentrations were modelled by a set of ordinary differential equations, which were solved numerically by the 4th order Runge-Kutta method. The model was validated by the experimental data and the agreement between the model and experimental results demonstrates that the model is reasonable for prediction of the dynamic behaviour of the fermentation process.

Item Type: Conference or Workshop Item (Speech)
Additional Information: Index by Scopus
Uncontrolled Keywords: Cell death; Differential equations; Ethanol; Maximum likelihood; Ordinary differential equations; Palm oil; Process control; Runge Kutta methods; Yeast
Subjects: Q Science > QA Mathematics
Faculty/Division: Faculty of Engineering Technology
Faculty of Industrial Sciences And Technology
Depositing User: Mrs. Norazaliza Mohd Jamil
Date Deposited: 25 Jan 2018 02:20
Last Modified: 04 Apr 2018 03:33
URI: http://umpir.ump.edu.my/id/eprint/19694
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