Summary
Glucose and acetate enhanced cell growth and phycocyanin production of S. platensis. The highest specific growth rate, cell concentration and phycocyanin production were respectively 0.62 d-1, 2.66 g/l and 322 mg/l on glucose and 0.52 d-1, 1.81 g/l and 246 mg/l on acetate. The specific growth rate of the alga on 2.5 g glucose/l was markedly increased with increasing light intensity up to 2 klux. Further increasing light intensity to 4 klux only resulted in a very slight increase in specific growth rate. At a light intensity above 4 klux, photoinhibition occurred. Light favoured phycocyanin formation. The highest phycocyanin content was obtained at a light intensity of 4 klux. When the light intensity decreased to 2 klux or less, the optimal glucose concentration for biomass production shifted from 2.5 g/l to 5.0 g/l.
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Chen, F., Zhang, Y. & Guo, S. Growth and phycocyanin formation of Spirulina platensis in photoheterotrophic culture. Biotechnol Lett 18, 603–608 (1996). https://doi.org/10.1007/BF00140211
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DOI: https://doi.org/10.1007/BF00140211