In vitro antioxidant activity assessment on alcoholic extract of cyanobacteria cultures from spirulina platensis

The antioxidant supplementation such as vitamin C, E, A and beta carotene etc, has proven to prevent the process of ageing caused by free radicals. Antioxidants either prevent free radical production or counteract the impeding damage by doing so they are involved in the protection and prevention of cellular damage which is the common pathway for cancer, aging and much disease. The cyanobacteria is a blue green micro algae believed to be a rich antioxidant source, found in abundance in Spirulina platensis is evaluated for antioxidant potential by modern in vitro techniques. METHODS the alcoholic extract of cyanobacteria is studied by in vitro Lipid Peroxidation inhibition assay (LPO), The nitric oxide (NO)free radical scavenging activity and the determination of the DPPH (one, 1-diphenyl-2picrylhydrazil) radical scavenging activity in concentrations which ranged from 1.95 g/mg to 500 g/mg in a geometric progression using spectrophotometer