EFFECTS OF VARIOUS LIGHT INTENSITIES ON PHYCOCYANIN COMPOSITION OF CYANOBACTERIUM LIMNOSPIRA FUSIFORMIS (VORONICHIN) NOWICKA-KRAWCZYK, MÜHLSTEINOVÁ & HAUER

Phycocyanin denotes a photosynthetic pigment discovered in Rhodophyta and cyanobacteria, which has been used medical, industrial, agricultural applications. In general, phycocyanin production by cyanobacteria depends on many environmental conditions, mainly light during the cultivation period. The goal of this research was to see how various intensities 47, 52, as well 60 µmol m-2 s-1, affected cyanobacterium Limnospira fusiformis cultured Zarrouk medium with maximum temperature 28°C. outcomes revealed that mild intensity (52 s-1), increased 11.94 ng/mg took place. With regard greater (60 lesser 0.57 These results give good impression moderate lighting increases production, but high inhibits it. statistical analysis also showed there are significant differences between study at level p<0.05. Therefore, concluded intensity. Light regime optimization gives yield pigment. study, occurred s-1).