Rumex induratus Leaves: Interesting Dietary Source of Potential Bioactive Compounds

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• 作者：Federico Ferreres ; Ví ; tor Ribeiro ; Angel Gil Izquierdo ; M. &Acirc ; ngelo Rodrigues ; Rosa M. Seabra ; Paula B. Andrade ; Patrí ; cia Valentã ; o
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2006
• 出版时间：August 9, 2006
• 年：2006
• 卷：54
• 期：16
• 页码：5782 - 5789
• 全文大小：139K
• 年卷期：v.54,no.16(August 9, 2006)
• ISSN：1520-5118

文摘

The 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 identifiedphenolics by HPLC-DAD showed 6-C-hexosyl-luteolin as the main compound. Organic acidcomposition was determined by HPLC-UV, revealing a high content of oxalic acid. R. induratus wasalso investigated for its capacity to act as a scavenger of DPPH and superoxide radicals. Goodantioxidative results were obtained against both radicals. Unlike other species of the genus Rumex,R. induratus did not present any anthraquinone derivative.