Flavonoid content and antioxidant potential of leaf extracts of Passiflora setacea cv BRS Prola do Cerrado, a new wild passion fruit cultivar

Passiflora setacea D.C. is a wild species native to the Brazilian Cerrado, with agronomic and medicinal potentials. The cultivar BRS Pérola do Cerrado first registered protected of has become an alternative passion fruit market due its desirable characteristics for food, ornamental pharmaceutic industries. Since plant tissue culture techniques are considered important tools large-scale production plants bioactive compounds, goal this work was evaluate flavonoid content antioxidant potential hydroethanolic leaf extracts from in vivo micropropagated new cultivar. Phytochemical analysis performed by HPLC-UV-ESI-MS/TOF. Antioxidant activity evaluated DPPH iron-chelating assays. activities enzymes catalase, superoxide dismutase ascorbate peroxidase (CAT, SOD APX) were also determined. Two di-C-glucosyl flavonoids derivatives apigenin as major constituents both analyzed identified vicenin-2 schaftoside. Despite low observed assay, showed high chelating capacity. Although no differences CAT observed, specific APX increased plants. These results suggest that vitro can be used Cerrado. Key words: Flavonoid content, phytochemical analysis, potential, extracts, setacea.