Feasible ranges for exchange rates, methane yields and methane to CO2 ratio predicted by the linearized full model and the reduced model for the six-species community with ethanol as substrate.

For comparison, experimental data from the enrichment culture for growth on ethanol (average of two experiments) are listed. In the simulations, μc was fixed to the dilution rate of the experiments (0.001 h-1) and accumulation of organic acids was switched off (according to experimental data). A table with simulation results and experimental data for other dilution rates can be found in S7 Text. The six species in the model are: P. freudenreichii, A. woodii, D. vulgaris, S. fumaroxidans, M. barkeri and M. hungatei.