ASSESSMENT OF GROWTH PARAMETERS OF SPIRULINA (Spirulina Platensis) USING DIGESTED ROTTEN MANGO (Mangifera Indica) SUPERNATANT AS A COSTEFFECTIVE CULTURE MEDIA

The culture and growth performance of Spirulina platensis in three different concentrations (25, 50, and 75 percent) of digested rotten mango media (DRMM) and Kosaric medium (KM) as control were investigated. This study intended to examine DRMM as a low cost culture media for microalgae. For 16 days, optical density, cell weight, chlorophyll a concentration, and total biomass of S. platensis under various treatments were measured in every alternate day. The growth rate of S. platensis cultured in the supernatant of DRMM and KM was varied and the maximum cell weight, chlorophyll a content and total biomass of S. platensis were 0.085 mg/L, 0.08 mg/L and 4.824±0.021 mg/L at 50% in DRMM of the culture. This study showed that the growth performance of S. platensis was higher in the supernatant of 50% DRMM than 25 and 75% of DRMM which resulted satisfactorily compared with standard KM. In the supernatant of 50% digested rotten mango medium, large volume spirulina culture may be feasible.