POLYPHENOLIC PROFILE OF INTERSPECIFIC CROSSES OF ROWAN (SORBUS AUCUPARIA L.)

The aim of the work was to make reference to antioxidant properties of selected cultivars of interspecific crosses of rowan. Altogether 6 cultivars were compared. The total phenolic content, antioxidant capacity, total flavonoid content and scavenging activity of the methanolic extract of fruit on nitric oxide were determined. Moreover, the polyphenolic profile of cultivars was screened. The highest values of phenolic and flavonoid content were found to be in the fruit of the Likernaja cultivar (5.82 g of gallic acid . kg(-1) FW; 3.85 +/- 0.18 g of rutin . kg(-1) FW). Likernaja cultivar displayed the highest content of chlorogenic acid and quercetin (100.8 mg . 100 g(-1) FW, 51.4 mg . 100 g(-1) FW). The correlation coefficient between total phenolic content (TPC) and nitric oxide scavenging activity (NO) was r(2) = 0.885 and between total flavonoid content (TFC) and NO was r(2) = 0.810