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KMID : 1024520120210060757
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Journal of the Environmental Sciences
2012 Volume.21 No. 6 p.757 ~ p.761
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Cultivation of Tetraselmis suecica under Different Types of Light Emitting Diodes
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Lee Jea-Keun
Lim Jun-Hyuk
Lee Tae-Yoon
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Abstract
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The purpose of this study was to determine optimum conditions for the cultivation of Tetraselmis suecica (T. suecica)
under illumination of four different types of LEDs (i.e., blue, red, white, and mixed). Initial cell concentration was 4×104
cells/mL and temperature of reactor was maintained between 21-240C. Specific growth rates were 0.72 day-1(white), 0.58
day-1(red), 0.49 day-1(mixed), and 0.49 day-1(blue). Thus, white LEDs was used for the cultivation of T. suecica. Tests with white LEDs under different light intensity, which was conducted to determine optimum light intensity of white LEDs,
showed that 9,000 lux of illumination resulted in fastest cell growth and greatest cell concentrations. To avoid shadow effects by dense cell populations, aeration was performed. Cell concentration increased 3.8 times when aeration was used.
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KEYWORD
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Light emitting diode, Photo-bioreactor, Tetraselmis suecica, Aeration, Biomass
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