A Pyranine based procedure for evaluation of the total antioxidant potential (TRAP) of polyphenols: a comparison with closely related methodologies
Biol. Res
;
37(2): 287-292, 2004. tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-393137
ABSTRACT
A novel procedure for the evaluation of total reactive antioxidant potentials (TRAP) is described. The method is based on the measurement of the bleaching of pyranine by peroxyl radicals. The addition of the antioxidants produces a clear induction time whose magnitude is directly related to the antioxidant concentration. A comparison of the values obtained with those reported employing closely related methodologies shows that the results are significantly affected by the substrate employed to monitor the steady state free radical concentration. Possible sources of this dependence are discussed.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Antioxidantes
Idioma:
Inglés
Revista:
Biol. Res
Asunto de la revista:
Biologia
Año:
2004
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Chile
Institución/País de afiliación:
Universidad Católica de Valparaíso/CL
/
Universidad de Santiago de Chile/CL
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