IMR Press / FBE / Volume 10 / Issue 2 / DOI: 10.2741/E822

Frontiers in Bioscience-Elite (FBE) is published by IMR Press from Volume 13 Issue 2 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Review

Enhancement of biomass and phycocyanin content of Spirulina platensis

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1 Ege University, Faculty of Natural and Applied Sciences, Department of Biotechnology, Izmir, 35100, Turkey
2 Ege University, Faculty of Engineering, Department of Bioengineering, Izmir, 35100, Turkey

*Author to whom correspondence should be addressed.

Front. Biosci. (Elite Ed) 2018, 10(2), 276–286; https://doi.org/10.2741/E822
Published: 1 January 2018
(This article belongs to the Special Issue Bioactive molecules from microalgae)
Abstract

Response surface methodology (RSM) based on the 23 factorial central composite design (CCD) was employed to evaluate optimum culture conditions (temperature, light irradiance and agitation) to enhance biomass and phycocyanin content of Spirulina platensis. The predicted maximum biomass and phycocyanin content by RSM was 1.06 g L−1 and 107 mg L−1, respectively, whereas maximum biomass and phycocyanin content of 1.32 g L−1 and 127 mg L−1 was obtained in the validation experiments under optimized conditions after 10 days of cultivation. Further, influence of optimized conditions (temperature 33±2 °C, light irradiance 44 μmol photons m−2 s−1 and a flow rate of 2.5 L min-1) on growth and phycocyanin content of S. platensis in 7L Panel photobioreactor (PPBR) cultivation was investigated. A 15 days production was carried out and it was observed that a maximum biomass yield of 2.42 g L−1 with a specific growth rate 0.202 day-1 and phycocyanin content of 228 mg L−1 was obtained in the PPBR. The optimum culture conditions obtained through response surface methodology were successfully determined to maximize the biomass and phycocyanin.

Keywords
Cyanobacteria
Phycocyanin
Response Surface Methodology
Panel Photobioreactor
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