Effect of CO2 concentration on growth and photosynthesis of spirulina platensis

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Effect of CO2 concentration on growth and photosynthesis of spirulina platensis
Song-Gun Kim; Chan Sun Park; Yong Ha Park; S T Lee; Hee-Mock Oh
Bibliographic Citation
Studies in Surface Science and Catalysis, vol. 153, pp. 295-298
Publication Year
The effect of different CO2 concentrations on the growth and photosynthesis of Spirulina platensis NIES 46 was examined in terms of cell growth and photosynthetic parameters. Under 0.01% CO2, growth stopped after the depletion of the dissolved inorganic carbon and the cell yield was low. The cells grown under 0.07% CO2 exhibited no change in their growth rate when compared with the 0.03% CO2-grown culture, yet the cell yield increased from 1.2 to 3.6 g/l. The cells under 1% CO2 showed the lowest growth, even though the inorganic carbon remained at 50-60 mg/l and pH 7.5-8.0. The photosynthetic rates under 0.03 and 0.07% CO 2 were higher than those under 0.01 or 1%. Accordingly, among the tested CO2 concentrations, 0.07% CO2 was found to be the best for a high-density culture of S. platensis NIES 46.
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Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
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