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Título

New Phenolic Compounds and Antioxidant Potential of Catharanthus roseus

AutorFerreres, Federico CSIC ORCID; Pereira, David M.; Valentão, Patricia; Andrade, Paula B.; Seabra, Rosa M.; Sottomayor, Mariana
Palabras claveCatharanthus roseus
Phenolic compounds
HPLC-DAD-ESI-MS/MS
Antioxidant activity
Fecha de publicación14-oct-2008
EditorAmerican Chemical Society
CitaciónJournal of Agricultural and Food Chemistry 56(21): 9967-9974 (2008)
ResumenScreening of the phenolic compounds from seeds, stems, leaves and petals of Catharanthus roseus (L.) G. Don (cv. Little Bright Eye) was achieved by HPLC-DAD-ESI-MS/MS. This is the first detailed study of noncolored phenolics in C. roseus, which allowed the characterization of three caffeoylquinic acids and fifteen flavonol glycosides (di- and trisaccharides of kaempferol, quercetin and isorhamnetin). Fifteen compounds are reported for the first time in this species. The scavenging ability of the different plant matrices was assessed against DPPH• radical and against reactive oxygen (superoxide radical) and a reactive nitrogen (nitric oxide) species. A concentration-dependent protective effect was observed for seeds and tissues, with petals shown to be the most active.
Descripción8 pages, 4 figures, 1 table.
Versión del editorhttp://dx.doi.org/10.1021/jf8022723
URIhttp://hdl.handle.net/10261/17628
DOI10.1021/jf8022723
ISSN0021-8561
E-ISSN1520-5118
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