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Antioxidant potential of barley extract in rats subjected to a high-fat diet

Antioxidants have the ability to neutralize free radicals produced in the body during lipid oxidation. The objective in this article was to study the effect of the barley extract on lipid oxidation in rats subjected to a high-fat diet. The experiment lasted 67 days. The animals were separated into t...

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Bibliographic Details
Published in:Ciência e tecnologia de alimentos 2013-01, Vol.33 (1), p.167-171
Main Authors: Zimmermann, Alice Mesquita, Rivero, Alessandra Coelho, Bezerra, Aline Sobreira, Ruviaro, Amanda Roggia, Novack, Mariana Moura Ercolani, Nörnberg, José Laerte
Format: Article
Language:English
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Summary:Antioxidants have the ability to neutralize free radicals produced in the body during lipid oxidation. The objective in this article was to study the effect of the barley extract on lipid oxidation in rats subjected to a high-fat diet. The experiment lasted 67 days. The animals were separated into three experimental groups: standard (P), high-fat diet group (L), and group with high-fat diet supplemented with barley extract (C). The feed intake of L and C groups was the lowest (p < 0.05). The treatments did not influence weight gain, organ weight, and the blood parameters measured. However, the levels of malondialdehyde present in the liver tissue were higher in the L group and lower in the P and C groups. Therefore, the results indicated an increased level of lipid peroxidation in the liver of rats subjected to high-fat diet, which was reduced by the consumption of barley. Os antioxidantes têm a capacidade de neutralizar os radicais livres gerados no organismo durante a oxidação lipídica. O objetivo deste artigo foi estudar o efeito do extrato de cevada na oxidação lipídica em ratos submetidos a uma dieta rica em gordura. O experimento durou 67 dias. Os animais foram separados em três grupos experimentais: grupo padrão (P), grupo de dieta rica em gordura (L) e grupo com dieta rica em gordura suplementada com extrato de cevada (C). O consumo de ração dos grupos L e C foi mais baixa (p < 0,05). Os tratamentos não influenciaram no ganho de peso, no peso dos órgãos e nos parâmetros sanguíneos avaliados. No entanto, os níveis de malondialdeído presentes no tecido hepático foram maiores no grupo L e menores nos grupos P e C. Portanto, os resultados indicaram um aumento do nível de peroxidação lipídica no fígado de ratos submetidos à dieta rica em gordura, a qual foi reduzida com o consumo de cevada.
ISSN:0101-2061
1678-457X
1678-457X
DOI:10.1590/S0101-20612013005000024