The research of antioxidant activities and determination of phytochemical contains of the some Scorzonera species

In this study, the effects of in vitro antioxidant and antimicrobial activities of extracts Scorzonera suberosa C. KOCH, Scorzonera latifolia Fisch. & Mey. and Scorzonera laciniata L. which were collected in Elazığ and only antioxidant effects of Debaryomyces hansenii and Kluyveromyces lactis in cultural medium are researched. In the study, the free radical scavenging activity, flavonoid, resveratrol and sugar contents, lipid peroxidation, levels of fatty acid, vitamin values, protein and glutathione amounts were measured. According to the results of in vitro lipid peroxidation; the determinated that extract groups to reduce the level of lipid peroxidation and the amount of oleic and linoleic acid were protected. The amount of lipid peroxidation in Debaryomyces hansenii of plant extract added to the groups decreased, whereas the lipid peroxidation of Kluveromyces lactis were increased. Aerial parts of plant samples in a dose dependent effect of increasing showed DPPH radical scavenging. Plant extract showed the highest antimicrobial effect on Escherichia coli and Bacillus megaterium. Depending on the species of Scorzonera phytochemical compounds as a result of the study concluded that the antioxidant properties shown.Key Words: Scorzonera, Lipid Peroxidation, Yeast, Antioxidant, Protein