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Título

Inhibitory and synergistic effects of natural olive phenols on human platelet aggregation and lipid peroxidation of microsomes from vitamin E-deficient rats

AutorRubio-Senent, Fátima; de Roos, Baukje; Duthie, Garry; Fernández-Bolaños Guzmán, Juan ; Rodríguez-Gutiérrez, Guillermo
Palabras claveAlperujo
Olive oil wastes
Phenols
Platelet function
Lipid peroxidation
Vitamin E
Fecha de publicacióndic-2015
EditorSpringer
CitaciónEuropean Journal of Nutrition 54 (8): 1287-1295 (2015)
ResumenPurpose This study explored the in vitro antioxidant and anti-platelet activities of hydroxytyrosol, hydroxytyrosol acetate, 3,4-dihydroxyphenylglycol and two phenolic olive extracts. These compounds and extracts were obtained from a new industrial process to hydrothermally treat the alperujo (160 °C/60 min), a by-product of olive oil extraction. Methods The extracts and the purified compounds were obtained chromatographically using both ionic and adsorbent resins. The antioxidant activity was determined by measuring inhibition of human platelet aggregation and inhibition of lipid peroxidation in liver microsomes of vitamin E-deficient rats. Results The positive effect of the extracts on the inhibition of platelet aggregation is showed, being higher in the case of hydroxytyrosol acetate up to 38 %, and for the first time, its synergist effect with hydroxytyrosol has been proved, obtaining more than double of inhibition. The phenolic extracts and the isolated phenols showed good results for inhibiting the lipid oxidation, up to 62 and 25 %, respectively. A synergistic effect occurred when the hydroxytyrosol acetate and the 3,4-dihydroxyphenylglycol were supplemented by hydroxytyrosol. Conclusion These results suggest the extract and these compounds obtained from a novel industrial process could be natural alternatives for the prevention of diseases related to cardiovascular disorder or oxidative damage.
Descripción20 Páginas; 3 Tablas; 3 Figuras
Versión del editorhttp://dx.doi.org/10.1007/s00394-014-0807-8
URIhttp://hdl.handle.net/10261/128339
DOI10.1007/s00394-014-0807-8
ISSN1436-6207
E-ISSN1436-6215
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