Dynamic metabolic modeling of heterotrophic and mixotrophic microalgal growth on fermentative wastes
Fig 6
Disinhibition of butyrate by addition of acetate, light and a mix of acetate/butyrate due to the biomass effect.
A larger biomass implies a decrease in butyrate inhibition on growth. Biomass can be increased by addition of acetate (B), light (C) and/or a mix of acetate and butyrate (D). Red: acetate; blue: butyrate; yellow: biomass. A. Normal conditions, without any additions. B. Addition of acetate (0.5 gC.L-1, volume half of culture volume) in the medium at day 5. C: Addition of light at day 5. Full lines: incident light intensity of 136 μE.m-2.s-1. Dashed line: incident light intensity of 272 μE.m-2.s-1. D. Addition of a mix of acetate (0.25 gC.L-1) and butyrate (0.45 gC.L-1) (volume half of culture volume) representative of a fermentative waste (4). Full lines: without light. Dashed lines: with light.