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Relationship between lipid peroxidation and antioxidant status in the muscle of German Holstein bulls Fed n-3 and n-6 PUFA-enriched diets.
Mahecha, Liliana; Dannenberger, Dirk; Nuernberg, Karin; Nuernberg, Gerd; Hagemann, Elke; Martin, Jörg.
Afiliação
  • Mahecha L; Grupo Grica, Facultad de Ciencias Agrarias, Universidad de Antioquia, Medellin, Colombia.
J Agric Food Chem ; 58(14): 8407-13, 2010 Jul 28.
Article em En | MEDLINE | ID: mdl-20583808
This study evaluated the influence of different n-3 and n-6 PUFA-enriched diets on the relationship between lipid peroxidation and antioxidant status by analyzing fatty acids (FA), lipid peroxidation, antioxidant capacity (AOC), antioxidant enzymes, trace elements, and fat-soluble vitamins in the longissimus muscle. Diet caused significant changes in muscle FA composition, leading to accumulation of beneficial n-3 FA. beta-Carotene and catalase activity were significantly elevated in muscle of the n-3 PUFA-enriched diet group compared to the n-6 PUFA-enriched diet group. Lipid peroxidation was higher in muscle of the n-3 PUFA-enriched diet group after 15 min of reaction time. There was no significant effect of diet on AOC, but it increased with reaction time. The present results suggest that the antioxidant defense in muscle of the n-3 PUFA-enriched diet group could balance reactive substances under low oxidative conditions. However, the antioxidant capacity was not sufficient under abundant accumulation of reactive substances.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Bovinos / Peroxidação de Lipídeos / Músculo Esquelético / Ácidos Graxos Insaturados / Ração Animal / Antioxidantes Limite: Animals Idioma: En Revista: J Agric Food Chem Ano de publicação: 2010 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Bovinos / Peroxidação de Lipídeos / Músculo Esquelético / Ácidos Graxos Insaturados / Ração Animal / Antioxidantes Limite: Animals Idioma: En Revista: J Agric Food Chem Ano de publicação: 2010 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Estados Unidos