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Algal Growth and Lipid Accumulation Stimulated by Nitrogen Concentration

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This Demonstration shows a plot of Chlamydomonas reinhardtii (algae) growth and neutral lipid accumulation versus time, for variations in initial ammonium ion concentration in a batch photobioreactor. This can be applied to optimize the amount of nitrogen to be added to the batch to produce maximum algal biomass yield and maximum neutral lipid.

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The modified logistic approach was used for describing the algal growth and Leudeking–Piret equation for neutral lipid accumulation with the change in initial ammonium ion concentration in a batch photobioreactor. The model equations and parameter values are from [1].

Reference

[1] R. Tevatia, Y. Demirel, and P. Blum, "Kinetic Modeling of Photoautotropic Growth and Neutral Lipid Accumulation in Terms of Ammonium Concentration in Chlamydomonas reinhardtii," Bioresource Technology, 119, 2012 pp. 419–424.

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Contributed by: Rahul Tevatia (November 2012)
Open content licensed under CC BY-NC-SA

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