Data/hora: 07/06/2024 02:08:39

Provedor de dados: | 48
País: | Chile
Título: | A Pyranine based Procedure for Evaluation of the Total Antioxidant Potential (TRAP) of Polyphenols: A Comparison with closely related Methodologies
Autores: | CAMPOS,ANA MARÍA; SOTOMAYOR,CARLOS PATRICIO; PINO,EDUARDO; LISSI,EDUARDO.
Data: | 2004-01-01
Ano: | 2004
Palavras-chave: | Peroxyl radicals; Polyphenols; Pyranine; Total reactive antioxidant potential.
Resumo: | 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
Tipo: | Journal article
Idioma: | Inglês
Identificador: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000200015
Editor: | Sociedad de Biología de Chile
Formato: | text/html
Fonte: | Biological Research  v.37 n.2 2004