Effect of hydrogen formation rate with fixed glucose uptake only. H2 output flux was varied to examine the effect of hydrogen on the production of acetate, butyrate, acetone, butanol, ethanol and biomass for optimal growth simulations on only glucose, with an uptake rate of 9.39 mmol/gDW/hr and a non-growth associated ATP maintenance of 8.5 mmol/gDW/hr. Note that while positive ethanol formation is not depicted in the plot, FVA found ethanol and butanol production to be interchangeable with no detrimental result to growth rate.
Milne et al. BMC Systems Biology 2011 5:130 doi:10.1186/1752-0509-5-130