FLAVONOIDS AS STABILIZERS OF FISH-OIL - AN ALTERNATIVE TO SYNTHETIC ANTIOXIDANTS

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dc.contributor.authorNIETO, S
dc.contributor.authorGARRIDO, A
dc.contributor.authorSANHUEZA, J
dc.contributor.authorLOYOLA, LA
dc.contributor.authorMORALES, G
dc.contributor.authorLEIGHTON, F
dc.contributor.authorVALENZUELA, A
dc.date.accessioned2025-01-23T19:21:40Z
dc.date.available2025-01-23T19:21:40Z
dc.date.issued1993
dc.description.abstractThe antioxidant activities against fish oil oxidation of six commercially available flavonoids and of five flavonoids purified from two Chilean native plants were compared to those of dl-alpha-tocopherol and of two synthetic antioxidants, butylated hydroxytoluene and butylated hydroxyanisole. Among the commercial flavonoids, catechin, morin and quercetin showed a higher activity when fish oil oxidation (either spontaneous or Fe2+-induced) was assessed from the formation of peroxides or thiobarbituric acid-reactive substances. Among the native flavonoids, the 5,3',4'-trihydroxy-7-methoxy flavanone (designated as Pt-2) showed the highest antioxidant activity. Mixtures of quercetin or of Pt-2 with dl-alpha-tocopherol produced better inhibitory effects when compared to that of each substance assayed by itself. Also, when Pt-2 and quercetin were assayed in combination (0.3 g/kg oil and 0.7 g/kg oil, respectively), a synergistic antioxidant effect was observed. Results indicate that several flavonoids could be used as natural antioxidants as a means to replace those synthetic antioxidants, the use of which has been questioned.
dc.fuente.origenWOS
dc.identifier.issn0003-021X
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/98837
dc.identifier.wosidWOS:A1993LR82200007
dc.issue.numero8
dc.language.isoen
dc.pagina.final778
dc.pagina.inicio773
dc.revistaJournal of the american oil chemists society
dc.rightsacceso restringido
dc.subjectDL-ALPHA-TOCOPHEROL
dc.subjectFISH OIL OXIDATION
dc.subjectFLAVONOIDS AS ANTIOXIDANTS
dc.subjectNATIVE FLAVONOIDS
dc.subjectNATURAL ANTIOXIDANTS
dc.subjectSYNTHETIC ANTIOXIDANTS
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleFLAVONOIDS AS STABILIZERS OF FISH-OIL - AN ALTERNATIVE TO SYNTHETIC ANTIOXIDANTS
dc.typeartículo
dc.volumen70
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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