The Growth and Lipid Accumulation of Spirulina sp. Under Different Light Conditions

Spirulina is a filamentous, spiral-shaped cyanobacterium (blue green alga), known as a great resource of natural and bioactive compounds. The colour of Spirulina sp. cell under the red and white light conditions rapidly transferred from green to yellow after 5 days of cultivation. High biomass and lipid accumulation of Spirulina sp. were achieved after 5 days of culture under the red light condition. The results showed that the red and white light conditions induced the growth and biosynthesis organic compounds such as carotenoid and lipid with high concentration compared to the blue condition in Spirulina sp.