Nannochloropsis salina is a marine free living nanoplanktonic alga with biotechnological potential. Among the three Common algal culture media studied, Guillard’s f/2 medium produced better biomass, growth rate and production of Chl a when compared to Walne’s and Chu#10 media. There was not much difference among the three media when it came to the amount of carotenoids produced. Protein production was more in Walne’s medium during the log phase whereas, high production of carbohydrate and lipid were seen during the decline phase in f/2 medium. Growth rate analysis of N. salina in different dilutions of Guillard’s F medium; f/2, f/4 and f/8, revealed a comparatively high growth rate and a shorter lag phase in f/4 medium.
