A Pyranine based Procedure for Evaluation of the Total Antioxidant Potential (TRAP) of Polyphenols: A Comparison with closely related Methodologies

Autor:	ANA MARÍA CAMPOS, CARLOS PATRICIO SOTOMAYOR, EDUARDO PINO, EDUARDO LISSI
Jazyk:	angličtina
Rok vydání:	2004
Předmět:	Peroxyl radicals polyphenols pyranine total reactive antioxidant potential Biology (General) QH301-705.5
Zdroj:	Biological Research, Vol 37, Iss 2, Pp 287-292 (2004)
Druh dokumentu:	article
ISSN:	0716-9760 0717-6287
Popis:	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
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/b05d6b69ee764dfa8316f2c414dfeca4 Zobrazit plný text záznamu View record in DOAJ