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Cultivation of Tetraselmis suecica under Different Types of Light Emitting Diodes

LED 조명을 이용한 광생물 반응기에서의 Tetraselmis suecica 배양 연구

  • Lee, Jae-Keun (Department of Environmental Engineering, Pukyong National University) ;
  • Lim, Jun-Hyuk (Department of Environmental Engineering, Pukyong National University) ;
  • Lee, Tae-Yoon (Department of Environmental Engineering, Pukyong National University)
  • Received : 2012.03.07
  • Accepted : 2012.06.05
  • Published : 2012.06.30

Abstract

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 $4{\times}10^4$ cells/mL and temperature of reactor was maintained between 21-$24^{\circ}C$. 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.

Keywords

References

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