Fig. 3
The cell size and pH value of Dunaliella tertiolecta cultured outdoors under different sodium bicarbonate concentrations in ATCC-1174 DA medium using rotating floating photobioreactor. a The changes in cell sizes of D. tertiolecta under 0.02 mol L−1 NaHCO3 (filled red circle) and 0.10 mol L−1 NaHCO3 (filled blue triangle) as compared to the control, 0.00 mol L−1 NaHCO3 (filled black cube). b The changes in pH values of D. tertiolecta culture under cultivation conditions mentioned above. Data were expressed as mean ± standard deviation of three independent experiments (n = 3)