Your browser doesn't support javascript.
loading
A comparison of methods employed to evaluate antioxidant capabilities
Perez, D. D; Leighton, F; Aspee, A; Aliaga, C; Lissi, E.
  • Perez, D. D; Catholic University of Chile. Faculty of Biological Sciences. Santiago. CL
  • Leighton, F; Catholic University of Chile. Faculty of Biological Sciences. Santiago. CL
  • Aspee, A; University of Santiago. Faculty of Chemistry and Biology. Santiago. CL
  • Aliaga, C; University of Santiago. Faculty of Chemistry and Biology. Santiago. CL
  • Lissi, E; University of Santiago. Faculty of Chemistry and Biology. Santiago. CL
Biol. Res ; 33(2): 71-77, 2000. tab
Artículo en Inglés | LILACS | ID: lil-443676
ABSTRACT
Three different methodologies frequently employed to evaluate the indexes that report the antioxidant capabilities of pure compounds and/or complex mixtures of antioxidants are applied to a series of mono- and polyphenols, as well as to two wine (red and white) samples. These methodologies are based on the bleaching of a stable radical, the effect of the additive upon luminol chemiluminescence induced by peroxyl radicals, and the effect of the additive upon the bleaching of the fluorescence from a dye molecule. Widely different responses are obtained from the different methodologies. These differences are interpreted in terms of the different factors (stoichiometric factors and/or reactivities) that determines the indexes evaluated by these different methodologies.
Asunto(s)
Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Peróxidos / Espectrometría de Fluorescencia / Vino / Cromanos / Mediciones Luminiscentes / Antioxidantes Idioma: Inglés Revista: Biol. Res Asunto de la revista: Biologia Año: 2000 Tipo del documento: Artículo País de afiliación: Chile Institución/País de afiliación: Catholic University of Chile/CL / University of Santiago/CL

Similares

MEDLINE

...
LILACS

LIS

Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Peróxidos / Espectrometría de Fluorescencia / Vino / Cromanos / Mediciones Luminiscentes / Antioxidantes Idioma: Inglés Revista: Biol. Res Asunto de la revista: Biologia Año: 2000 Tipo del documento: Artículo País de afiliación: Chile Institución/País de afiliación: Catholic University of Chile/CL / University of Santiago/CL