USE OF THE ORAC-PYROGALLOL RED/ORAC-FLUORESCEIN RATIO TO ASSESS THE QUALITY OF ANTIOXIDANTS IN CHILEAN WINES

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dc.contributor.authorLopez Alarcon, C.
dc.contributor.authorOrtiz, R.
dc.contributor.authorBenavides, J.
dc.contributor.authorMura, E.
dc.contributor.authorLissi, E.
dc.date.accessioned2024-01-10T14:22:23Z
dc.date.available2024-01-10T14:22:23Z
dc.date.issued2011
dc.description.abstractWe have recently proposed that ORAC (Oxygen Radical Absorbance Capacity) methods employing fluorescein (ORAC-FL) and pyrogallol red (ORAC-PGR) as target molecules could be considered as complementary indexes. In particular, the ratio ORAC-PGR/ORAC-FL would reflect the average quality of the antioxidants present in a particular sample. In the present work, we evaluated the antioxidant capacity and the total phenol content of twelve Chilean wines (red, rose, and white) employing ORAC and Folin-Ciocalteau methods, respectively. Red wines showed higher Folin and ORAC values than rose and white wines. However, the ORAC-PGR/ORAC-FL ratio of all tested wines was close to 0.5. The results show that it is important to consider both, the phenol content of the sample (measured by ORAC-FL or Folin indexes) and their average reactivity (measured by the ORAC-PGR/ORAC-FL ratio). Both factors are considered relevant in the evaluation of the antioxidant capacity of wines.
dc.description.funderFONDECYT
dc.fechaingreso.objetodigital2024-05-30
dc.format.extent4 páginas
dc.fuente.origenWOS
dc.identifier.doi10.4067/S0717-97072011000300009
dc.identifier.issn0717-9324
dc.identifier.urihttps://doi.org/10.4067/S0717-97072011000300009
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79923
dc.identifier.wosidWOS:000296753600009
dc.information.autorucQuímica;Benavides J ;S/I;198503
dc.information.autorucQuímica;Lopez C ;S/I;1004308
dc.information.autorucQuímica;Mura E ;S/I;132285
dc.issue.numero3
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final767
dc.pagina.inicio764
dc.publisherSOC CHILENA QUIMICA
dc.revistaJOURNAL OF THE CHILEAN CHEMICAL SOCIETY
dc.rightsacceso abierto
dc.subjectAntioxidant capacity
dc.subjectORAC
dc.subjectwines
dc.subjectpyrogallol red
dc.subjectfluorescein
dc.subjectABSORBENCY CAPACITY ASSAY
dc.subjectPEROXYL RADICALS
dc.subjectIN-VITRO
dc.subjectRED WINE
dc.subjectMETHODOLOGY
dc.subjectEXTRACTS
dc.subjectVALUES
dc.subjectVIVO
dc.subjectCAPABILITIES
dc.subjectPROBE
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleUSE OF THE ORAC-PYROGALLOL RED/ORAC-FLUORESCEIN RATIO TO ASSESS THE QUALITY OF ANTIOXIDANTS IN CHILEAN WINES
dc.typeartículo
dc.volumen56
sipa.codpersvinculados198503
sipa.codpersvinculados1004308
sipa.codpersvinculados132285
sipa.indexWOS
sipa.indexScielo
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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