Evaluation of the effect of salinity on Dunaliella salina production and determination of total carotenoid extracted from it
Microalgae are one of the safest sources of protein production in the world that have good sources of a wide range of beneficial compounds, including proteins, fats and pigments. This research aims to use the cultivation of Dunaliella salina in Modified Johansson (DUM) and Guillard (f/2) media under salinity stress of 10, 20, 30%, culture media efficiency and the effect of salinity stress on Chlorophylls a and b as well as total carotenoids should be investigated. The results showed that the highest production of Chlorophylls a and b are 8.20±0.008 and 3.85±0.06 μg/mg, respectively, which is produced by the sample grown with DUM medium at 10% salinity. Also, the highest amount of carotenoids was 1.79±0.30 μg/mg which was produced by the sample grown in culture medium f/2 with a salinity concentration of 30% under stress. The highest cell growth was 7808333±52041/6 cells/ml at 10% salinity in Gillard culture medium. The results of this study showed that Dunaliella salina algae is a good source of carotenoids when exposed to salinity stress.
Culture medium f , 2 , DUM , Salinity , Chlorophyll a , b , Total Carotenoids
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