INFLUENŢA SELENITULUI DE Fe(III) ŞI A INTENSITĂŢII DE ILUMINARE ASUPRA CONŢINUTULUI DE FICOBILIPROTEINE, SELENIU ŞI FIER ÎN BIOMASA CIANOBACTERIEI SPIRULINA PLATENSIS

Valentina BULIMAGA, Liliana ZOSIM, Maria PISOVA, Valeriu RUDIC* , Sergiu ŞOVA Universitatea de Stat din Moldova *Institutul de Microbiologie şi Biotehnologie al AŞM

Abstract

EFFECTS OF Fe(III) SELENITE AND LIGHT INTENSITY ON THE ACCUMULATION OF PHYCOBILIPROTEINS, SELENIUM AND IRON IN BIOMASS OF CYANOBACTERIUM SPIRULINA PLATENSIS

Spirulina productivity and iron content in biomass recorded higher values at light intensity 5500 lx, compared to 3500 lx, but phycobiliproteins accumulation in spirulina biomass was more significant at 3500 lx. The content of the accumulated selenium in the phycobiliproteins registered the increased values with the increasing of selenite concentration, attesting its maximum value at 45 mg/l, at the both light intensity. Selenium content in the phycobiliproteins at 3500 lx was by 1.4-1.5 times higher, compared to that registered at 5500 lx. Keywords: Spirulina platensis, selenium, iron, accumulation, phycobiliproteins.