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
Artigo
em Inglês
| 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:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Antioxidantes
Idioma:
Inglês
Revista:
Biol. Res
Assunto da revista:
Biologia
Ano de publicação:
2004
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Chile
Instituição/País de afiliação:
Universidad Católica de Valparaíso/CL
/
Universidad de Santiago de Chile/CL
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