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 STUDIUL ACUMULĂRII CUPRULUI LA CULTIVAREA CIANOBACTERIEI SPIRULINA PLATENSIS ÎN PREZENŢA COMPUŞILOR COORDINATIVI AI Cu(II)(CEP USM, 2009) Rudic, Valeriu; Batîr, Ludmila; Bulimaga, Valentina; Zosim, Liliana; Elenciuc, Daniela; Gulea, Aurelian; Ţapcov, VictorThe acumulation of copper in biomass of cyanobacteria Spirulina platensis CNM - CB – 02 at the cultivation in the presence of coordination compounds of Cu (II) has been determined. Bioaccumulation of copper depends on the nature of ligands of the compounds. It was established that compounds [CuL2(Sfz)3H2O] and [Cu(L-2H)] contribute to the increasing of copper content in the biomass of spirulina in 2,94 – 3,42 times compared to the reference sample.Item STUDIUL ACŢIUNII COMPUŞILOR COORDINATIVI NOI AI Fe(III) ŞI AI Cr(III) ASUPRA PROCESULUI DE ACUMULARE A UNOR PRINCIPII BIOACTIVE ÎN BIOMASA DE SPIRULINĂ(CEP USM, 2009) Ciumac, Daniela; Zosim, Liliana; Chiriac, Tatiana; Prodius, Denis; Olan, Olga; Popa, Veaceslav; Sadovnic, Daniela; Iațco, Iulia; Cordeleanu, Cornel; Doni, VeronicaThe study of stimulative effect of some Fe(III) heterotrinuclear clusters and Cr(III) coordinative compouds on peptides and proteins content in Spirulina platensis biomass has been carried out.The protein content decreases with the growth of concentrations in the case of utilization of all coordinative compounds tested. The peptides content increases in the limits of 5,00-50,00 mg/l for Fe(III) coordinative compounds and 10,00-40,00 mg/l for Cr(III) coordinative compounds.Item EFECTUL STIMULATOR AL COMPUŞILOR COORDINATIVI AI CROMULUI(III) ASUPRA PRODUCTIVITĂŢII SPIRULINEI(CEP USM, 2007) Rudic, Valeriu; Gulea, Aurelian; Bulimaga, Valentina; Ciumac, Daniela; Ciornea, Valeriu; Zosim, Liliana; Popa, AlexeiThe action of some coordinative compounds of Cr(III) on Spirulina strain growth and development has been studied. High stimulation action of K2[Cr(NTA)(C2O4)(H2O)]·2H2O and [K2Cr2(SO4)4]·12H2O on Spirulina productivity has been established.Item ПЕРСПЕКТИВЫ ИСПОЛЬЗОВАНИЯ НЕКОТОРЫХ КООРДИНАЦИОННЫХ СОЕДИНЕНИЙ Mn (II) ДЛЯ ПОЛУЧЕНИЯ БИОМАССЫ ЦИАНОБАКТЕРИИ Spirulina platensis, ОБОГАЩЕННОЙ СУПЕРОКСИДДИСМУТАЗОЙ (SOD)(CEP USM, 2007) Рудик, Валериу; Гуля, Аурелиан; Бульмага, Валентина; Ефремова, Надежда; Поповски, ЛилияA fost determinată influenţa unor compuşi coordinativi ai Mn(II) asupra acumulării în biomasa cianobacteriei Spirulina platensis a enzimei superoxiddismutaza (SOD). A fost stabilită o activitate înaltă a enzimei SOD în prezenţa tuturor compuşilor coordinativi ai Mn(II) cercetaţi; este de menţionat în special compusul [Mn(CCl3COO)3(CN3H5)]·2H2O (o sporire a activităţii de 6,5 ori faţă de proba de referinţă). Biomasa cu conţinut înalt de SOD poate fi utilizată pentru obţinerea preparatelor antioxidante.