Evaluation of Spirulina platensis Growth Factors for High-Efficiency Biomass Production

Spirulina platensis is an important microalga cultivated commercially in many tropical countries and sub-tropical and temperate regions to feed humans and animals. The cost of the culture medium is containing 15 to 20 percent of its production process. Lower production costs can be a fundamental solution for the high-value production of spirulina. Therefore, it is necessary to optimize. This study investigated the optimization growth of Spirulina as an Iranian species. Samples were isolated from a specific region (North of Iran). More than 130 culture mediums were studied with different gradients such as temperature, light, PH, and essential salts. The results showed the best growth conditions were in culture medium No: 18, 25°C, pH=10.5, and light intensity = 3500 LUX), and the dry mass was obtained 40mg per 100ml. This study achieved the best performance and optimized environmental conditions for Spirulina platensis.