Discussion of the Model and Numerical Solution

The parameters of this model offer a physiologically adequate description of the growth and fermentation of Zymomonas mobilis. Furthermore, this model is highly consistent with experimental fermentor data. Specifically, it predicts the response of the steady state RNA content of the biomass to elevated ethanol concentrations qualitatively. The effect of an elevated ethanol concentration on the fermentation kinetics resembles the effect of elevating the temperature of the fermentation broth. 

The quantitative description, however, is not optimal, as it was necessary to adapt some parameters values for describing the oscillations at different dilution rates. A quan- 

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