A dynamic Model coupling Photoacclimation and Photoinhibition in Microalgae

Philipp Hartmann 1 Andrea Nikolaou 2 Benoît Chachuat 2 Olivier Bernard 1, *
* Auteur correspondant
1 BIOCORE - Biological control of artificial ecosystems
LOV - Laboratoire d'océanographie de Villefranche, CRISAM - Inria Sophia Antipolis - Méditerranée , INRA - Institut National de la Recherche Agronomique
Abstract : Microalgae are often considered a promising alternative for production of renewable energy, particularly as a potential producer of biodiesel. In order to improve largescale, industrial culturing systems, the development of mathematical models that are capable of predicting photosynthetic productivity under dynamic conditions is crucial. Especially important are the processes of growth inhibition due to excess light, known as photoinhibition, and of adjustment of the light harvesting capacity to photon flux, known as photoacclimation. In this paper, we develop a dynamic model that accounts for the processes of photoinhibition, photoacclimation and growth in microalgae, thereby spanning multiple time scales. The properties of the model are investigated under quasi steadystate conditions and the model is validated against several experimental data sets from the literature. We also discuss how the model can provide new insights into the mechanisms underlying photoacclimation.
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Communication dans un congrès
European Control Conference (ECC13), Jul 2013, Zurich, Switzerland. 2013
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Philipp Hartmann, Andrea Nikolaou, Benoît Chachuat, Olivier Bernard. A dynamic Model coupling Photoacclimation and Photoinhibition in Microalgae. European Control Conference (ECC13), Jul 2013, Zurich, Switzerland. 2013. 〈hal-00852256〉

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