발광다이오드를 이용한 광생물반응기에서 해수산 Tetraselmis suecica의 최적 배양 조건에 관한 연구

Abstract

ABSTRACT

In the present study, the effects of culture conditions using LEDs (Light Emitting Diode) for the cultivation Tetraselmis suecica were investigated to determine the optimum culture conditions for obtaining high yields of microalgae. Tetraselmis suecica was cultivated under 5 different tempratures ( 160, 180, 200, 220, 240C) during 8 days. The highest maximum specific growth rate at the 20~240C was observed 0.86 day-1 and low temperature resulted in cell growth inhibition. Specific growth rate and cell concentration were measured for the reactors at the illuminations of different wavelength. The most beneficial wavelength of the cell cultivation was white ( 0.72 day-1) LED on the culture of Tetraselmis suecica.. Thus, the cells were cultivated under white LED by different light intensities ( 3,000 ˞ 9,000 lux) and under the illumination of 9,000 lux showed the most high concentration of cells. Air supply result in 3.5 times higher concentration than the test cultivated without air supply.

Key words: Light Emitting Diodes (LED), Specific growth rate, Photobioreactor, Tetraselmis suecica, Biomass