Proximate Composition Analysis of Spirulina platensis in Lab Scale Cultivation: Prospects of Digested Rotten Guava as a Culture Media

An experiment was conducted to evaluate the proximate composition of Spirulina platensis and growth performance in supernatant different concentrations (supernatant 20, 40 60 rotten guavas) digested guava medium (DRGM). The rates terms optical density, dry cell weight chlorophyll a spirulina were varied from each other. attained maximum 0.818 ± 0.003 mg/L 60% DRGM followed by 0.815 0.0015 0.809± 0.0012 20 40%, respectively on 10th day culture. Similar trend also observed case density media contained Spirulina, content (mg/L), total biomass specific (on basis a) Spirulina. Cell grown these had highly significant (P < 0.01) correlation with (r = 0.746) 0.742) significantly higher than that 20% 40% DRGM. percentage crude protein found 53.35 0.32% lipid 10.15 0.14% which 0.05) DGRM.