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Molecules 2009, 14(3), 970-978; doi:10.3390/molecules14030970
Article

Antioxidant Activity and Phenolic Content of Paederia foetida and Syzygium aqueum

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Received: 8 December 2008 / Revised: 13 January 2009 / Accepted: 15 January 2009 / Published: 3 March 2009
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Abstract

The antioxidant activity of fresh and dried plant extracts of Paederia foetida and Syzygium aqueum were studied using β-carotene bleaching and the 2,2’-azinobis(3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS) radical cation assay. The percentage of antioxidant activity for all extract samples using both assays was between 58 and 80%. The fresh samples of both plants had higher antioxidant activity than the dried samples. The results of the β-carotene bleaching assay were correlated (R2 = 0.9849) with those of the ABTS assay.
Keywords: Paederia foetida; Syzygium aqueum; Antioxidant activity; Phenolic content Paederia foetida; Syzygium aqueum; Antioxidant activity; Phenolic content
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Osman, H.; Rahim, A.A.; Isa, N.M.; Bakhir, N.M. Antioxidant Activity and Phenolic Content of Paederia foetida and Syzygium aqueum. Molecules 2009, 14, 970-978.

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