CAMELIA PAPUC, MARIA CRIVINEANU, GHEORGHE GORAN, VALENTIN NICORESCU, NICOLETA DURDUN<br>Free Radicals Scavenging and Antioxidant Activity of European Mistletoe (Viscum album) and European Birthwort (Aristolochia clematitis)

CAMELIA PAPUC, MARIA CRIVINEANU, GHEORGHE GORAN, VALENTIN NICORESCU, NICOLETA DURDUN
Free Radicals Scavenging and Antioxidant Activity of European Mistletoe (Viscum album) and European Birthwort (Aristolochia clematitis)

Abstract:

In this study, ethanolic extracts obtained from European mistletoe (Viscum album) and European birthwort (Aristolochia clematitis) were investigated for total polyphenols and flavonoid contents, Fe2+ chelating ability and free radicals scavenging activity. Scavenging activity was studied for 1,1-diphenyl-2-picrylhydrazyl free radical (DPPH.), superoxide anion, hydroxyl radical, hydrogen peroxide and nitric oxide. The obtained results indicate a higher content in polyphenols and flavonoids in case of birthwort extract comparatively to mistletoe extract. The polyphenols contained by the two alcoholic extracts have the ability to act as hydrogen donors and can chelate Fe2+; hydrogen donating ability using DPPH. assay and Fe2+ chelating ability were found to be higher for birthwort extract. Also, the two vegetal extracts had a good scavenging activity against superoxide anion, hydroxyl radical and nitric oxide, while for hydrogen peroxide the activity was low. Generally, free radicals scavenging activity was superior in case of birthwort extract comparatively to mistletoe extract. Keywords: free radicals, scavenging activity, antioxidant activity, European Mistletoe, European Birthwort

Issue: 2010, Volume 61, Issue 7

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