Fig. 2. The simulation of the Crabtree effect.
a EFL.cb, b ETFL.cb, c EFL.vb, and d ETFL.vb models. In all cases, after a critical growth rate (0.35–0.39 h−1 for different models), ethanol secretion was observed. Also, a shift in the fluxes of carbon dioxide production and oxygen consumption emerged, which indicated the shift of the organism from pure respiration to a combination of respiration and fermentation. The experimental data were taken from van Hoek et al.27.