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Polyphenols in an extract from Hibiscus: Antioxidant Benefits

August 16, 2012

Fernández-Arroyo et al studied aqueous extracts of Hibiscus that are commonly used in folk medicine. The major metabolites present after ingestion Hibiscus extract were characterized and quantified in order to study their bioavailability. The antioxidant status of the plasma samples was also measured.

 

Phenolic acids and flavonols like quercetin were identified. Phenolic acids have antioxidant activity. The study proposes that flavonol-conjugated forms (quercetin and kaempferol) may be the compounds responsible for the observed antioxidant effects and contribute to the healthy effects of Hibiscus extract.

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