English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/18188
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 1022 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Antioxidant activity of pomegranate juice and Its relationship with phenolic composition and processing

AutorGil Muñoz, M.ª Isabel; Tomás Barberán, Francisco; Hess-Pierce, Betty; Holcroft, Deirdre M.; Kadel, Adel A.
Palabras clavePomegranate
Punica granatum
Punicaceae
Juice
Phenolics
Anthocyanins
Ellagic acid
Punicalagin
Tannins
Antioxidant activity
ABTS
DPPH
DMPD
FRAP
Fecha de publicación15-sep-2000
EditorAmerican Chemical Society
CitaciónJournal of Agricultural and Food Chemistry 48(10): 4581-4589 (2000)
ResumenThe antioxidant activity of pomegranate juices was evaluated by four different methods (ABTS, DPPH, DMPD, and FRAP) and compared to those of red wine and a green tea infusion. Commercial pomegranate juices showed an antioxidant activity (18−20 TEAC) three times higher than those of red wine and green tea (6−8 TEAC). The activity was higher in commercial juices extracted from whole pomegranates than in experimental juices obtained from the arils only (12−14 TEAC). HPLC-DAD and HPLC-MS analyses of the juices revealed that commercial juices contained the pomegranate tannin punicalagin (1500−1900 mg/L) while only traces of this compound were detected in the experimental juice obtained from arils in the laboratory. This shows that pomegranate industrial processing extracts some of the hydrolyzable tannins present in the fruit rind. This could account for the higher antioxidant activity of commercial juices compared to the experimental ones. In addition, anthocyanins, ellagic acid derivatives, and hydrolyzable tannins were detected and quantified in the pomegranate juices.
Descripción9 pages, 4 figures, 6 tables.
Versión del editorhttp://dx.doi.org/10.1021/jf000404a
URIhttp://hdl.handle.net/10261/18188
DOI10.1021/jf000404a
ISSN1520-5118 (Online)
0021-8561 (Print)
Aparece en las colecciones: (CEBAS) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



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