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Título: | HPLC-DAD-MS/MS ESI Characterization of Unusual Highly Glycosylated Acylated Flavonoids from Cauliflower (Brassica oleracea L. var. botrytis) Agroindustrial Byproducts |
Autor: | Llorach, Rafael CSIC ORCID; Gil-Izquierdo, Ángel CSIC ORCID; Ferreres, Federico CSIC ORCID; Tomás Barberán, Francisco CSIC ORCID | Palabras clave: | Flavonoids Phenolics Hydroxycinnamic acid derivatives HPLC-DAD-MS/MS ESI Brassicas Cauliflower by-product Acylated kaempferol tetra- and pentaglucosides |
Fecha de publicación: | 23-may-2003 | Editor: | American Chemical Society | Citación: | Journal of Agricultural and Food Chemistry 51(13): 3895-3899 (2003) | Resumen: | In a recent program to investigate the possible use of vegetable handling and commercialization wastes and residues as a source of potentially bioactive extracts, we have studied cauliflower byproducts. A total of twenty-eight compounds were characterized by HPLC-DAD-MS, of these, twenty-two are produced naturally by the plant. The main compounds found were kaempferol 3-diglucoside-7-glucoside and its combinations with different hydroxycinnamic acids. Moreover, some flavonoids with an unusual high grade of glycosylation have been isolated and tentatively identified for the first time. To our knowledge, the characterization of flavonoids with more than four sugars has not been previously reported. The new products isolated were tentatively identified as kaempferol 3-diglucoside-7-diglucoside, kaempferol 3-triglucoside-7-diglucoside, kaempferol 3-feruloyldiglucoside-7-diglucoside, kaempferol 3-sinapoyltriglucoside-7-glucoside, kaempferol 3-disinapoyltriglucoside-7-glucoside, kaempferol 3-sinapoyltriglucoside-7-diglucoside and kaempferol 3-disinapoyltriglucoside-7-diglucoside. | Descripción: | 5 pages, 2 figures, 1 table. | Versión del editor: | http://dx.doi.org/10.1021/jf030077h | URI: | http://hdl.handle.net/10261/17959 | DOI: | 10.1021/jf030077h | ISSN: | 0021-8561 | E-ISSN: | 1520-5118 |
Aparece en las colecciones: | (CEBAS) Artículos |
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