Green microalga Dunaliella salina is largely used in modern biotechnology due to the high content of some bioactive substances in its biomass, in special glycerol and β-carotene, and due to its high adaptation to unspecific, unfavorableculture conditions. Utilization of some coordinative compounds of metals such as Fe(III), Zn(II), Cr(III) manifests
an positive effect on productivity and biochemical content of dunaliella. The highest content of carotenoids has beenobtained at dunaliella cultivation in the present of 10 mg/l[Zn(L-ser)2] and 30mg/l [Cr(Hssa)2]Cl•H2O, the highest content of glycerol – in the present of 1mg/l [Fe3O-Ala].
