Investigation of Total Phenolic Contents and Antioxidant Potentials of Some Vetch Genotypes (Vicia Sp.) Grown in Turkey

The aim of this research was to investigate the total phenolic contents and antioxidant potentials of some vetch genotypes obtained from seed methanol extracts which are cultivated in different areas of Turkey. In this study, five genotypes from three vetch species (common vetch (Vicia sativa L.), Hungarian vetch (Vicia pannonica Crantz.) and Narbon vetch (Vicia narbonensis L.)) were used as materials. The total phenolic content (TPC) of the samples was determined by using Folin-Ciocalteu's reagents and the antioxidant power determined by using DPPH center dot scavenging activity and ferric-reducing antioxidant activity (FRAP) assays. According to the research results, the TPC values of extracts were determined between 14.91-31.63 mg GAE g(-1). The Narbon vetch genotypes had the lowest TPC and antioxidant capacity, while Hungarian vetch genotypes had higher total phenolic content and more DPPH center dot scavenge activity. The interaction of species x genotypes was found significant at level of P<0.05. The differences between the total phenolic content and antioxidant activity potentials of the species indicate that the species with high phenolic content and antioxidant activity can be evaluate in terms of feed technology studies for animal nutrition, animal welfare, and meat quality.