Antioxidative properties of tronchuda cabbage (Brassica oleracea L.  var. costata DC) external leaves against DPPH, superoxide radical, hydroxyl radical and hypochlorous acid

Vrchovska, Vendula; Sousa, Carla; Valentão, Patrícia; Ferreres, Frederico; Pereira, J.A.; Seabra, Rosa M.; Andrade, Paula B.

http://hdl.handle.net/10198/744

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Abstract(s)

The ability of the aqueous extract of tronchuda cabbage (Brassica oleracea L. var. costata DC) external leaves to act as a scavenger of DPPH- and reactive oxygen species (superoxide radical, hydroxyl radical and hypochlorous acid) was investigated. A phytochemical study was also undertaken, and thirteen phenolic compounds and five organic acids were identified and quantified. Tronchuda cabbage extracts exhibited antioxidant capacity in a concentration-dependent manner in all assays, although some pro-oxidant effect was also noticed. The samples with higher phenolic and organic acid contents displayed the major antioxidant potentials.

Keywords

Tronchuda cabbage Brassica oleracea L. var. costata DC DPPH Superoxide radical Hydroxyl radical Hypochlorous acid Phenolics Organic acids

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http://hdl.handle.net/10198/744

Citation

Vrchovska, V.; Sousa, C.; Valentão, P.; Ferreres, F.; Pereira, J.A.; Seabra, R.M.; Andrade, P.B. (2006). Antioxidative properties of tronchuda cabbage (Brassica oleracea L. var. costata DC) external leaves against DPPH, superoxide radical, hydroxyl radical and hypochlorous acid. Food Chemistry. ISSN 0308-8146. 98:3, p. 416-425