To further optimize the simultaneous saccharification and fermentation(SSF)process
the adaptive particle swarm optimization(PSO)algorithm was applied to the parameter identification for the dynamic models of cell growth
product synthesis and sugar consumption. The model equation of reducing sugar consumption was presented based on the kinetics of fermentation. The adaptive PSO algorithm with non-linear changed inertia weight was found to be more effective in convergence compared with the linear method. The results show that the values simulated fit the experimental data well
indicating specific accuracy and feasibility of the employed models in reflecting the mechanisms of the SSF technology. It appears that the present adaptive PSO method with non-linear changed inertia weight may effectively be used in the model parameter estimation.
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references
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