초록 |
Chlorella sorokiniana UTEX 2805, a heat-tolerant microalga, was cultured autotrophically in outdoor tubular photobioreactor when the temperature for culturing the general microalga was improper. Particularly, an industrial flue gas generated by combustion of liquefied natural gas (LNG) and a natural sunlight were used for the economic production of biodiesel from the microalgal biomass. After performing a primary assessment of the biomass production under two temperature conditions (23℃, 36℃) in laboratory-scale, the cells were cultured in outdoor conditions under photoautotrophic condition in spring(March, 2016) and summer(July, 2016). As a result, C. sorokiniana showed high tolerance to flue gas and high temperature. In summer, the cell exhibited the remarkable lipid content (>35% of dry biomass) under N-starvation conditions to accelerate an intercellular oil accumulation. C. sorokiniana will improve microalgal biodiesel production under high temperature in outdoor conditions. |