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Título

Rumex induratus Leaves: Interesting Dietary Source of Potential Bioactive Compounds

AutorFerreres, Federico ; Ribeiro, Vitor; Gil-Izquierdo, Ángel ; Rodrigues, M. Angelo; Seabra, Rosa M.; Andrade, Paula B.; Valentão, Patricia
Palabras claveRumex induratus
Phenolic compounds
Oxalic acid
Antioxidant activity
Fecha de publicación21-jul-2006
EditorAmerican Chemical Society
CitaciónJournal of Agricultural and Food Chemistry 54(16): 5782-5789 (2006)
ResumenThe phenolic compounds of Rumex induratus leaves were determined by HPLC-DAD-MS/MS-ESI. The results revealed a profile composed of 19 compounds: caffeoyl-hexoside, two p-coumaroyl-hexoside isomers, feruloyl-hexoside, sinapoyl-hexoside, 6-C-hexosyl-quercetin, 8-C-hexosyl-luteolin, 6-C-hexosyl-luteolin, 6-C-hexosyl-apigenin, 3-O-hexosyl-quercetin, 3-O-rutinosyl-quercetin, 7-O-hexosyl-diosmetin, 3-O-rutinosyl-isorhamnetin, 7-O-(acetyl)-pento-hexosyl-diosmetin, 6-C-hexosyl-genkwanin, and four unidentified O-glycosyl-C-glycosylflavones. The quantification of the identified phenolics by HPLC-DAD showed 6-C-hexosyl-luteolin as the main compound. Organic acid composition was determined by HPLC-UV, revealing a high content of oxalic acid. R. induratus was also investigated for its capacity to act as a scavenger of DPPH and superoxide radicals. Good antioxidative results were obtained against both radicals. Unlike other species of the genus Rumex, R. induratus did not present any anthraquinone derivative.
Descripción8 pages, 6 figures, 4 tables.
Versión del editorhttp://dx.doi.org/10.1021/jf0613233
URIhttp://hdl.handle.net/10261/17852
DOI10.1021/jf0613233
ISSN1520-5118 (Online)
0021-8561 (Print)
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