Aktywność przeciwutleniająca ekstraktów z wybranych roślin należących do rodziny Rosaceae

Abstract

Introduction. Plants are a valuable source of biologically active compounds, including antioxidants, which could prevent the development of oxidative stress. The members of Rosaceae family such as Sorbus aucuparia L. and Cydonia oblonga Mill. are the examples of plants contained antioxidants. Aim. The aim of the study was to evaluate the antioxidant potential of leaves and fruits extracts of rowan and quince, taking into account influence of the extrahent as well as extraction method on this activity. Material and methods. The extracts were obtained by classic extraction methods – shaking and extraction in Soxhlet apparatus. Methanol, acetone as well as 70 and 96% (v/v) ethanol were used as solvents. Antioxidant activity was estimated by DPPH, FRAP, Folin-Ciocalteu (F-C) and ABTS methods. Results. The highest antioxidant activity was found in leaf extracts of both plants. In most cases, rowan extracts showed higher potential than appropriate extracts of quince. The most effective extraction method was extraction in Soxhlet apparatus using methanol (in case of rowan and quince) as well as 96% (v/v) ethanol (quince) and 70% (v/v) ethanol (rowan). The highest results were obtained with FRAP method, whereas the lowest – with DPPH. Conclusions. The presented in vitro results confirmed, that the leaves and fruits extracts of selected plants belonging to the Rosaceae family showed antioxidant activity and could be applied in various industry branches.