English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/17941
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Characterisation of flavonols in broccoli (Brassica oleracea L. var. italica) by liquid chromatography–UV diode-array detection–electrospray ionisation mass spectrometry

AutorVallejo, Fernando ; Tomás Barberán, Francisco; Ferreres, Federico
Palabras claveFood analysis
Broccoli
Flavonoids
Acylated glycosides
Fecha de publicación29-oct-2004
EditorElsevier
CitaciónJournal of Chromatography A 1054(1-2): 181-193 (2004)
ResumenThe flavonoid composition of broccoli inflorescences has been studied by LC/UV-DAD/ESI-MSn. A large number of hydroxycinnamic acid esters of kaempferol and quercetin glucosides has been characterised. The structures of the flavonoid glycosides were analysed after alkaline hydrolysis, and were identified as 3-sophoroside/sophorotrioside-7-glucoside/sophoroside of kaempferol, quercetin and isorhamnetin (this last found in trace amount). These complex quercetin and isorhamnetin glucosides have not been previously characterised in nature. In addition, several less complex glucosides based on the same aglycones have been identified. The effect of sugar substitution and acylation on chromatographic mobility and ESI ionisation and fragmentation are discussed.
Descripción13 pages, 6 figures, 4 tables.
Versión del editorhttp://dx.doi.org/10.1016/j.chroma.2004.05.045
URIhttp://hdl.handle.net/10261/17941
DOI10.1016/j.chroma.2004.05.045
ISSN0021-9673
Aparece en las colecciones: (CEBAS) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.