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KMID : 0380020150300060319
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Korean Journal of Biotechnology and Bioengineering
2015 Volume.30 No. 6 p.319 ~ p.325
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Effect of NaNO3 and NaHCO3 Concentration on Microglae Arthrospira platensis Growth
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Choi Soo-Jeong
Ha Jong-Myung
Lee Jae-Hwa
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Abstract
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Arthrospira platensis (A. platensis) is one of the most explored cyanobacteria and has been studied for proteins, vitamins, pigment (chlorophyll and carotenoids) and fatty acid. In this study, we tested the effect of NaHCO3 and NaNO3 on the microalgae growth under photoautothrophic culture in A. platensis. As a result, cell growth and dry cell weight were increased in proportion to the NaHCO3 and NaNO3 concentration. Pigment (chlorophyll and carotenoids) contents of A. platensis were increased with proportion to NaHCO3 concentration. But, the content of pigment (chlorophyll and carotenoids) in 100% NaNO3 medium of A. platensis was the highest, 40%, 140% and 200% NaNO3 medium with pigment content of A. platensis was reduced. In conditions of NaHCO3 (50%) or NaNO3 (40%) limitation, A. platensis could accumulate lipids to high as 1.7-fold and 1.3-fold.
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KEYWORD
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Arthrospira platensis, NaHCO3 and NaNO3, Lipid, Pigment, Photosynthesis
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