발광다이오드의 색상 변화에 따른 미세조류의 성장 특성

Abstract

microalage is a useful resource which has Recently been attracting attention all over the world as its ability not only to fix carbon dioxide with photosynthesis but also to commercially produce useful secondary metabolites. Most of all, it has two advantages; first, the possibility of mass production; second, the high content of lipids which is the target product of the components. In order to cultivate these microalgae effectively, it is essential to supply efficient light, most of all Light emitting diode also has three advantages; first it can be selectively irradiated with color; second, it doesn't generate heat; last, it has more economical than fluorescent lamp, a conventional light sources. Although the study to apply a light emitting diode to microalgae culture has been attempted recently, more research results are needed to be applied commercially. In this study, the optimal light color was derived with using a light emitting diode to enhance the photosynthesis of the microalgae. Microalgae used in this study was cultured in a cultivation tank after sampling from the P University fish farm. Medium was used as a Jaworski's medium. The number of dominant species in the culture is three: Chlorella sp, Scenedesmus and Ulothrix. The amount of photosynthesis of microalgae was measured with the concentration of dissolved oxygen. The optimal color ratio of the findings microalgae photosynthesis is the color ratio of light(Red : Blue = 63% : 37%) in the same amount of color strength, and The optimal color ratio of the findings microalgae photosynthesis is the color ratio of light(Red : Blue = 63% : 37%) in the same amount of light intensity. When you examine the optimal color ratio that was discovered by using a light-emitting diode, 62.9% power is maximum as compared to when it was irradiated the cause fluorescent lamp (Watt) low.