Modeling the Influence of Temperature, Light Intensity and Oxygen Concentration on Microalgal Growth Rate

Dissolved oxygen plays a key role in microalgal growth at high density. This effect was so far rarely quantified. Here we propose new model to represent the combined of light, concentration and temperature (LOT-model) on microalgae growth. The LOT-model introduces order oxidative stress affecting cultures, adding toxicity term expression net rate. validated with experimental data for several species such as Chlorella minutissima, vulgaris, Dunaliella salina, Isochrysis galbana. It successfully predicted records an average error lower than 5.5%. also using dynamical where varies. highlights strong impact productivity, depending temperature. quantifies sensitivity different shows, example, that salina is much less affected vulgaris by stress. modeling approach can support optimization strategy improve especially managing levels.