Antioxidative properties of tronchuda cabbage (Brassica oleracea L. var. costa...

• Autor(es): Vrchovska, V. ; Sousa, C. ; Valentão, P. ; Ferreres, F. ; Pereira, J.A. ; Seabra, R.M. ; Andrade, P.B.
• Data: 2006
• Identificador Persistente: http://hdl.handle.net/10198/744
• Origem: Biblioteca Digital do IPB
• Assunto(s): Tronchuda cabbage; Brassica oleracea L. var. costata DC; DPPH; Superoxide radical; Hydroxyl radical; Hypochlorous acid; Phenolics; Organic acids
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

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.