Determination of Antioxidant Activity and Chemometric Characterization of Betula pendula Leaves in Erzurum Region

In this study, leaf samples of Birch Tree collected from different settlements in the characteristic vegetation of Erzurum region were investigated with different in vitro antioxidant activity investigated and chemometrics characterization was carried out. The samples were harvested in the May-July period from Uzundere, Horasan and ？enkaya regions, dried and their ethanol extracts were obtained. CUPRAC, FRAP and DPPH responses were positive for all samples. The highest antioxidant capacity values were obtained from samples of ？enkaya region. When the obtained values are examined chemometrically with the help of computer algorithms; significant differences and a positive correlation with the altitude change in each region were obtained. It was concluded that geographic characterization can be realized by antioxidant activity values and the altitude differences have a significant effect on phenolic and flavanoid contents of birch leaves. Owing to the antioxidant activity of the birch plant it is thought that it can be used especially in important areas such as cancer and cosmetics