Deterministic Modelling of the Combined Action of Light and Heat Stress on Microbial Growth
Transient behavior, which is typical of living systems, requires that short term processes be formulated as dynamic reactions and that these take long term adaptations into account. It has been possible to include these requirements in a mathematical model, where the growth of the green alga Scenedesmus obliquus was analysed in terms of a combined action of light and heat stress. Michaelis-Menten kinetics were solved and the activation energy, entropy and enthalpy were in agreement with the known properties of enzymatic reactions. An activity state variable V was derived, which enabled the modelling of adaptation kinetics due to available light.
KeywordsBiomass Entropy Enthalpy Phytoplankton Respiration
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