An Identifiable State Model To Describe Light Intensity Influence on Microalgae Growth
An Identifiable State Model To Describe Light Intensity Influence on Microalgae Growth
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DOI：
10.1021/ie500523z
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发表时间：
2014-04-23
影响因子：
4.2
通讯作者：
Bezzo, F.
中科院分区：
文献类型：
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作者：
Bernardi, A.;Perin, G.;Bezzo, F.
尽管微藻作为燃料和化学品生产原料的潜力很大，但微藻的工业化培养仍然存在许多问题。微藻培养系统的产量受到可收获的太阳能的限制。提供可靠的模型来描述影响藻类生长的关键现象，可能有助于在工业层面上设计和优化有效的生产系统。本文用第一性原理模型描述了不同光照条件对海水微绿藻桑拿生长的复杂影响。利用体内荧光测量等实验数据建立了该模型。该模型可以可靠地描述所有的生长曲线和荧光数据。对模型结构进行评估和修改，以保证模型的可辨识性及其参数集估计的稳健性和可靠性。
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 sauna 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.