Advances in Traditional Medicine

Kyung Hee Oriental Medicine Research Center (경희대학교 융합한의과학연구소)
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Antioxidant capacity of crude extract and fractions from Woodfordia fruticosa flower

  • Bhatt, Lok Ranjan (Department of Herbal Resources, Professional Graduate School of Oriental Medicine, Wonkwang Univeristy) ;
  • Baek, Seung-Hwa (Department of Herbal Resources, Professional Graduate School of Oriental Medicine, Wonkwang Univeristy)
  • Published : 2007.06.30
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Abstract

Woodfordia fruticosa Kurz. (Lythraceae), commonly known as Dhayero, is used in the treatment of various ailments in Nepal. In this study, the antioxidant capacity of crude extract and different polarity fractions of Woodfordia fruticosa flowers were assayed for their scavenging abilities against 1,1-diphenyl-2-picrylhydrazyl (DPPH) and nitric oxide radicals, competitive ${\beta}$-carotene bleaching, reducing power, metal chelating ability and total phenolic content. Crude extract and polar fractions showed stronger antioxidant capacity and contained very high level of total phenolics. They exhibited strong DPPH radical scavenging, nitric oxide scavenging and reducing power, medium ${\beta}$-carotene bleaching and poor metal chelating capacity. Positive correlation obtained between total phenolic content and antioxidant capacity assays, indicated the contribution of phenolics toards antioxidant capacity.

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References

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