Published in Scientific Papers. Series A. Agronomy, Vol. LVIII
Written by Rodica SOARE, Cristina BĂBEANU, Dorina BONEA, Ovidiu PĂNIŢĂ
Rosa canina L. is a shrub native to Europe, northwest Africa and western Asia with various uses in naturopathy, nutrition, as a decorative plant or in breeding as rootstocks etc. Although in Romania, Rosehip grows in abundance in wild flora, few know about the valuable biochemical properties that it has and the antioxidant potential of this species. At present, a priority in the human diet, both nationally and internationally, is to identify natural sources of antioxidants. In this study, it was analyzed the content of total polyphenols, flavonoids and antioxidant activity of Rosehips genotypes from the spontaneous flora of Oltenia (Romania). The total phenolic content was determined according to the Folin-Ciocalteu method, the antioxidant activity by DPPH radical (2,2 1 picrilhidrazil diphenyl) and flavonoids by colorimetric method. Polyphenol content was between 35.43-48.07 mg GAE/g, antioxidant activity varied between 99.3 and 363.64 μmTE/100 g sp., and the content in flavonoid was between 211.8-672.67 mg/100g. The bestresults for total polyphenol content and antioxidant activity was observed in Group I which comprises three genotypes (G6, G9, G11), considered as prospects for the improvement of this species.
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natural antioxidants
