Facultatea de Biologie și Geoştiinţe / Faculty of Biology and Geosciences
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Item STUDIUL INFLUENŢEI UNOR COMPUŞI COORDINATIVI AI Zn(II), Cr(III) ŞI Fe(III) ASUPRA PRODUCTIVITĂŢII ŞI CONŢINUTULUI UNOR SUBSTANŢE BIOACTIVE ALE DUNALIELEI LA CULTIVARE PE MEDIUL ORGANO-MINERAL ELABORAT ÎN BAZA LICHIDULUI CULTURAL AL SPIRULINEI(CEP USM, 2009) Bivol, CezaraGreen 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].Item PRODUCTIVITATEA ŞI COMPONENŢA BIOCHIMICĂ A MICROALGEI VERZI DUNALIELLA SALINA LA CULTIVARE PE LICHID CULTURAL AL SPIRULINEI SUPLIMENTAT CU NaCl, IONI DE NO3 2- ŞI SO4 2-(CEP USM, 2009) Bivol, CezaraThe study of productivity and biochemical properties of green microalga Dunaliella salina cultivated on the organicmineral medium produced on the base of the cultural liquid from Spirulina platensis, supplemented with NaCl, NO3- andSO42- ions are presented. The productivity is higher in the presence of the maximum concentration of NaCl-NO3-and NaCl-SO42- associations. The highest biochemical content has been obtained formaximum investigated concentrations–0,5 g/l NaNO3 and 0,75 g/l MgSO4·7H2 O. In the high concentrations NaCl can act as stimulating and inhibitoryfactor in dependence of concentrations of other ions.