Simulation of Steady State Gluconic Acid Fermentation using Contois Kinetic Model

Fatmawati, Akbarningrum and Agustriyanto, Rudy (2010) Simulation of Steady State Gluconic Acid Fermentation using Contois Kinetic Model. In: 2010 International Chemical Congress of Pasific Basin Societies, December 15-20, 2010, Honolulu, Hawaii, USA.

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Abstract

Gluconic acid is a mild organic acid that has gained much interest as it has many industrial applications such as in the pharmaceutical, food, animal feed and textile industry. There are several methods to produce gluconic acid including chemical, electrochemical, biochemical and bioelectrochemical. The design and operation of a fermenter needs the understanding of complex biological reactions. This requires mathematical modeling to describe the process more simply but still represent the process quite well. These models may lead to the development of better strategies of the fermentation optimization to ensure its economic viability. The kinetic parameters in this study were obtained by minimizing non linear least squares curve fitting. Steady-state fermentation was simulated by varying hydraulic retention time in the fermenter to investigate its effect on the fermenter performance. The steady state fermentation models were based on the continuous mass balance equations of cell, substrate, and product in the fermenter. In the range of hydraulic retention time of 3-13 hours, Logistic and Contois models exhibit similar trend and therefore the maximum hydraulic retention of 13 hours is recommended. However, Logistic model failed to describe the process at hydraulic retention time higher than 13 hours.

Item Type: Conference or Workshop Item (Poster)
Subjects: Q Science > QA Mathematics
Q Science > QD Chemistry
Q Science > QR Microbiology
T Technology > T Technology (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering > Department of Chemical Engineering
Depositing User: Rudy Agustriyanto, M.Sc 199005
Date Deposited: 31 Jul 2012 03:57
Last Modified: 31 Jul 2012 03:57
URI: http://repository.ubaya.ac.id/id/eprint/877

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