Original Articles : Development of Economical Fertilizer-Based Media for Mass Culturing of Nannochloropsis oceanica = Original Articles : Development of Economical Fertilizer-Based Media for Mass Culturing of Nannochloropsis oceanica

다국어 초록 (Multilingual Abstract)

This study was conducted to develop economical agricultural fertilizer media for the mass culturing of Nannochloropsis oceanica. Specific growth rates of N. oceanica cultured with differing concentrations of commercial compounds, urea fertilizers, and trace elements (Zn, Cu, Co, Mo) were compared with the growth rate in f/2 medium. Among the various added trace elements, CuSO4·5H2O was most effective for high growth of N. oceanica. The main nitrogen source in the agricultural fertilizers was ammonium, which was unsuitable for the growth of N. oceanica. Thus, the fertilizer at a lower concentration infused with NaNO3 as a nitrogen source was more effective than fertilizer at higher concentrations. In this study, the growth of N. oceanica cultured with an agricultural fertilizer medium composed of compound fertilizer (41.7 mg/L), urea fertilizer (34.4 mg/L), NaNO3 (150 mg/L), and CuSO4·5H2O (0.0588 mg/L) was similar to that of N. oceanica cultured in f/2 medium.