Abstract

The present study attempts to find naturally-occurring antioxidants of fruit-based which give efficacy by additive activities. Citrus paradisi, known as Grape fruit contains significant bioactive components such as Naringin. The present study examines the free radical scavenging activity of ethanolic extract of Citrus paradisi and Naringin. The study was carried out with different radical scavenging assays like hydroxyl, DPPH, hydrogen peroxide, nitric oxide, super oxide. Citrus paradisi extracts showed lower radical scavenging activities in assays such as DPPH, superoxide and hydroxyl when compared with Naringin. Naringin showed the higher radical scavenging effect with nitric oxide, and hydrogen peroxide in comparison with citrus paradisi extract. However, both were analysed by using ascorbic acid as standard. The current study gives evidence that both showed potential free radical scavenging activity.

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