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Optimal Culture Conditions for Photosynthetic Microalgae Nannochloropsis oculata  

Park, Hyun-Jin (Department of Bioscience and Biotechnology, College of Engineering, Silla University)
Jin, Eun-Jung (Department of Bioscience and Biotechnology, College of Engineering, Silla University)
Jung, Tae-Man (Marine-Bio Center, Silla University)
Joo, Hyun (Department of Physiology and Integrated Biosystems, College of Medicine, Inje University)
Lee, Jae-Hwa (Department of Bioscience and Biotechnology, College of Engineering, Silla University)
Publication Information
Applied Chemistry for Engineering / v.21, no.6, 2010 , pp. 659-663 More about this Journal
Abstract
Microalgae has been seen all over the seawater and several species are used for human food. Specially, Nannochloropsis oculata, a photosynthetic microalgae, has been focused for a vast array of valuable nutritious compounds. In order to find high mass Nannochloropsis oculata culture conditions, some of important growth factors of pH, temperature, culture media, and $CO_2$ effect were tested. The optimal growth condition was found to be as follows : 3% artificial seawater, initial pH 8.5, and temperature $25^{\circ}C$. The alga mass and chlorophyll content were dramatically increased by applying 5% flue $CO_2$ gas (1.50 g/L algae in a continuous $CO_2$ flue; 0.76 g/L alga without $CO_2$). It was shown that the chlorophyll biosynthesis was also closely associated with alga growth.
Keywords
optimal culture; chlorophyll; Nannochloropsis oculata; marine microalga; carbon dioxide;
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