Facultatea de Biologie și Geoştiinţe / Faculty of Biology and Geosciences
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Item ACTIVITATEA ANTIOXIDANTĂ A PREPARATULUI ETANOLIC ÎN BAZA BIOMASEI DE PORPHYRIDIUM CRUENTUM(CEP USM, 2014) Sadovnic, Daniela; Cepoi, Liliana; Rudi, Ludmila; Valuţa, Ana; Chiriac, Tatiana; Codreanu, Svetlana; Miscu, Vera; Cojocari, AngelaThere wasstudied the impact ofantioxidant complex from microalga Porphyridium cruentum biomass on the antioxidant activityof vegetable oilsand their oxidation process. The antioxidant complex was obtained by extracting in 96% ethylalcohol. Antioxidant assay using the radical1,1-diphenyl-2-picryl-hydrazil (DPPH) revealed an increase of the antioxidant activity of oils supplemented with microalgal antioxidant complex. There was determineda decrease (up to 40% for olive oil) in fatty acid oxidation for vegetable oils with microalgal antioxidant extract.Item NOI PREMIXURI FURAJERE ÎN BAZA BIOMASEI DE SPIRULINĂ CU SELEN(CEP USM, 2014) Rudic, Valeriu; Djur, Svetlana; Cepoi, Liliana; Chiriac, Tatiana; Rudi, Ludmila; Codreanu, Svetlana; Ghelbet, VioricaThere have been proposed the recipesfor preparing two feed premixes with organic selenium according to the sourceofinorganicseleniumused: “Spirulina with organic selenium 1 and 2” and “protein feed premix with organic selenium 1 and2”. The proposedpremixescomprise amulticomponent synergisticcombination in case of the first technological recipe and Spirulina extract containing freea mino acids, oligopeptides and selenium-containing proteinsin case of the second recipe exhibiting significant anti- oxidantactivity andimmunomodulatory effect.Item EUROPIUM BIOACCUMULATION BY ARTROSPIRA PLATENSIS AND ITS EFFECT ON BIOMASS(CEP USM, 2022-09-29) Iușin, Nichita; Zinicovscaia, Inga; Cepoi, Liliana; Chiriac, Tatiana; Rudi, LudmilaItem 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 MODIFICAREA COMPONENŢEI CALITATIVE A PROTEINELOR LA CIANOBACTERIA SPIRULINA PLATENSIS CULTIVATĂ ÎN PREZENŢA UNOR COMPUŞI COORDINATIVI AI CR(III)(CEP USM, 2008) Rudic, Valeriu; Bulimaga, Valentina; Ciumac, Daniela; Zosim, Liliana; Chiriac, Tatiana; Efremova, NadejdaSDS-electrophoresis of polypeptide chains of total protein fraction obtained from Spirulina cultivated in the presence of Cr(III) coordination compounds have been carried out. New bands with apparent molecular mass 60, 4 kDa and 66, 7 kDa have been detected in the presence of Cr(III) coordination compounds.Item TEHNOLOGIA OBŢINERII ÎN BAZA BIOMASEI DE SPIRULINĂ A REMEDIULUI MEDICAMENTOS FERRIBIOR ŞI STUDIUL ACŢIUNII LUI ANTIANEMICE(CEP USM, 2008) Rudic, Valeriu; Gudumac, Valentin; Zosim, Liliana; Chiriac, Tatiana; Bulimaga, Valentina; Ciumac, DanielaThe technological scheme of obtaining of the preparation Ferribior with high content of organic iron (0,04-0,05%)and other bioactive substances: immunoactive amino acids (71% from free total amino acids and 70,57% from conjugated amino acids) and polysaccharides (6-7%) from spirulina biomass has been elaborated. The capacity of Ferribior to reestablish the plasmatic iron and zinc level and to stimulate hemathopoesis at experimental rats has been demonstrated.Item COMPONENŢA AMINOACIDĂ A OLIGOPEPTIDELOR ŞI AMINOACIZILOR LIBERI DIN BIOMASA DE SPIRULINĂ CULTIVATĂ ÎN PREZENŢA UNOR COMPUŞI COORDINATIVI AI Fe(III) Ş I Zn(II)(CEP USM, 2007) Rudic, Valeriu; Chiriac, Tatiana; Bulimaga, Valentina; Zosim, Liliana; Turtă, Constantin; Prodius, DenisAmino acid composition of oligopeptids and amino acids fractions in spirulina biomass cultivated in the presence of some coordinative compounds of Fe(III) and Zn(II) has been determined. High content of essential and especially immunoactive amino acids was pointed out in this study.Item BIOMASA DE SPIRULINĂ ÎMBOGĂŢITĂ CU IOD – SURSĂ ALTERNATIVĂ DE IOD(CEP USM, 2007) Bulimaga, Valentina; Zosim, Liliana; Ciumac, Daniela; Bejan, Tatiana; Chiriac, Tatiana; Djur, SvetlanaThe productivity of cyanobacteria Spirulina platensis and iodine accumulation in biomass at it cultivation in the pre-sence of KI with/without Co(NO3)2 have been determined. The supplementation in the first day is more favorable for obtaining of iodine enriched biomass. Iodine content is higher in biomass cultivated inthe presence of ratio KI: Co(NO3)2 as 12·10-3: 3·10-3 (mMoli).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; Iaţco, Iulia; Cordeleanu, Cornel; Oni, VeronicaThe study of stimulative effect of some Fe(III) heterotrinuclear clusters and Cr(III) coordinative compouds on pep-tides and proteins content in Spirulina platensis biomasshas been carried out.The protein content decreases with the growth of concentrations in the case of utilization of all coordinative com-pounds 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.