Figure 1.

(A)/(B) Cell density/specific growth rate of Chlorella vulgaris under different culture modes; (C)/(D)/(E) The concentration or percentage of starch/lipid/protein produced by Chlorella vulgaris under different culture modes. “P” represents photoautotrophic mode (3 g/L NaHCO₃); “H” indicates heterotrophic mode (3 g/L sodium acetate); “M” indicates the mixotrophic culture mode (3 g/L NaHCO₃ + 3 g/L sodium acetate); “*” indicates that there is a significant difference between “P” and “M,” and “#” indicates that there is a significant difference between “H” and “M”(p < 0.05).