Effect of culture mediums and light intensity on growth and carotenoides of Dunaliella salina in Urmia Lake

In the present research project effect of three culture medium and light intensity on carotenoides of algae, Dunaliella salina.In this study, Dunaliella species were collected from the lake and then was purified agar plate method. To study the effect of culture medium on the carotenoides of this species six treatments in triplicateof each culture medium by salinity 1.03, 2.99, 4.96 M in light intensity of 40, 120 and 200 micromol photon. m-2.s-1special culture module. Algae cells were counted regularly using Hemocitometry counting chamber in 3 replicates on daily basis. The growth curve was plotted out in Microsoft Excel software.
The carotenoides synthesized curve was plotted out in Microsoft Excel software and compared within treatments by means of two ways ANOVA Analysis.
Specific growth rate showed significant differences in various treatments (P