Антиоксидантная активность сухих экстрактов Rhaponticum uniflorum (L. ) DC

A study of the antioxidant activity of the in vitro dry extracts DER-1 and DER-2 derived from Rhaponticum uniflorum (L.) DC. It was established that the extracts have pronounced antiradical activity against DPPH-radical binding (IC 50 (DER-2) = 2.0 mkg/ml). When studying the effect of the dry extracts a number of reactive oxygen species (O •2, NO) revealed that they exhibit their ability to inactivate. With respect to Of-anion radical extracts show moderate and against NO expressed antiradical activity (IC 50 (DER-2) = 311.0 mkg/ml). We also revealed the presence of moderate Fe 2+-chelating activity of the extracts studied. This effect is caused by apparently content of phenolic compounds, phenol carbonic acids, triterpene saponins and tannins.