| 초록 |
CO2 enriched air bubbling is commonly used in the conventional algal culture systems, but supplying CO2 might be difficult in harsh environmental condition. In this study, effect of NaHCO3 concentration on the biomass productivity of Tetraselmis sp. MBEyh04Gc, was investigated. The microalgae were cultured using modified f/2-Si medium based on natural seawater in Floating Cube Photobioreactors (FC-PBRs) in the Youngheung island, Incheon, Korea. Initially, 4.0 g/L NaHCO3 was added to the cultures, and after 11 days of cultivation, when the cultures entered stationary phase, 0.0, 2.0, 4.0 g/L NaHCO3 were supplemented additionally. The biomass productivities were 0.19, 0.28, and 0.38 g/L/day in 0.0, 2.0 and 4.0 g/L NaHCO3 supplemented groups, respectively. The results indicate that NaHCO3 could be used as a carbon source alternative to CO2 gas for production of Tetraselmis sp. biomass in FC-PBRs. |
