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2010-08-03

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/53108

Moderately oxidized oils and dietary zinc and alpha-tocopheryl acetate supplementation: effects on the oxidative stability of rabbit plasma, liver, and meat

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http://dx.doi.org/10.1021/jf101635b

Abstract

The aim of this study was to assess the alterations in plasma, liver, and meat oxidative stability and R-tocopherol content when moderately oxidized sunflower oils were added to feeds and when feeds were supplemented with R-tocopheryl acetate (100 mg/kg) and Zn (200 mg/kg). The effects of cooking the meat and its subsequent refrigeration were also studied. When the content of primary oxidation compounds of the oil was high, rabbit plasma, liver, and meat R-tocopherol content was reduced and meat susceptibility to oxidation increased. The addition of oil with a high content of secondary oxidation compounds (oil heated at 140 'C, 31 h) to feed also led to an increase in meat susceptibi- lity to oxidation, although it presented an R-tocopherol content similar to that of nonheated oil. Feed supplementation with R-tocopheryl acetate increased tissue R-tocopherol content and improved the oxidative stability of liver and meat. However, in the latter, it was less effective when oil heated at 55 'C was added.

Subject

Olis vegetals, Pinsos, Conills, Suplements nutritius, Zinc, Reacció d'oxidació-reducció

Subject (English)

Vegetable oils, Feeds, Rabbits, Dietary supplements, Zinc, Oxidation-reduction reaction

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Articles publicats en revistes (Nutrició, Ciències de l'Alimentació i Gastronomia)

Citation

TRES OLIVER, Alba, et al. Moderately oxidized oils and dietary zinc and alpha-tocopheryl acetate supplementation: effects on the oxidative stability of rabbit plasma, liver, and meat. Journal of Agricultural and Food Chemistry. 2010. Vol. 58, num. 16, pags. 9112-9119. ISSN 0021-8561. [consulted: 17 of August of 2026]. Available at: https://hdl.handle.net/2445/53108

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