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American Chemical Society, Industrial & Engineering Chemistry Research, 16(53), p. 6738-6749, 2014

DOI: 10.1021/ie500523z

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An Identifiable State Model To Describe Light Intensity Influence on Microalgae Growth

Journal article published in 2014 by A. Bernardi, G. Perin, E. Sforza, F. Galvanin, T. Morosinotto ORCID, F. Bezzo
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Despite the high potential as feedstock for the production of fuels and chemicals, the industrial cultivation of microalgae still exhibits many issues. Yield in microalgae cultivation systems is limited by the solar energy that can be harvested. The availability of reliable models representing key phenomena affecting algae growth may help designing and optimizing effective production systems at an industrial level. In this work the complex influence of different light regimes on seawater alga Nannochloropsis salina growth is represented by first principles models. Experimental data such as in vivo fluorescence measurements are employed to develop the model. The proposed model allows description of all growth curves and fluorescence data in a reliable way. The model structure is assessed and modified in order to guarantee the model identifiability and the estimation of its parametric set in a robust and reliable way.