Effects of BG11, SKM and MKM culture media on optical density of Spirulina platentis cultivation

Spirulina platensis is blue-green microalgae and well known due to its unique nutritional quality. Spirulina also blue green algae that have attract a great deal of popularity in health products. In this research study, the culture medium are using BG11 medium, SKM and MKM and to analyse their effect on S. platensis by using growth parameter and also to determine the best culture medium for large cultivation. Thus, the optical density was recorded due to measure the growth performance on S. platensis. The optical density (OD) is one of the most important parameters in Spirulina cultivation. In this research, the cultivation system was conducted in 1 L of three conical flasks for every mediums. The 10 ml of culture were diluted with 10 ml of every different culture mediums for every conical flasks. The production of Spirulina in different culture mediums were observed for ten days of cultivation. Besides that, the initial pH also was recorded and also aerated by electric aerator. The data analysis was growth estimation by optical density measurement had been determined in a spectrophotometer at 620 nm. The results had shown, MKM the most suitable culture medium for cultivation of S. platensis due the growth performance on optical density. The results also shown, the alternative low-cost culture medium which was MKM had been successfully formulated for the cultivation of S. platensis.