4.7 Article

Dietary pomegranate by-product improves oxidative stability of lamb meat

Journal

MEAT SCIENCE
Volume 162, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2019.108037

Keywords

Pomegranate by-product; Lipid oxidation; Meat quality; Vitamin E; Antioxidants; Phenolic compounds

Funding

  1. project Ricerca di Base di Ateneo, University of Perugia, Department DSA3 [DSA3/2015]

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This study investigated the effect of including whole pomegranate by-product in lamb diet on meat oxidative stability. Seventeen lambs were assigned to two experimental treatments and fed a cereal-based concentrate (CON) or the same concentrate where 200 g/kg DM of cereals were replaced by whole pomegranate by-product (WPB). Meat from WPB-fed lambs had a greater concentration of vitamin E (alpha- and gamma-tocopherols), polyunsaturated fatty acids (PUFA), highly peroxidizable PUFA and a higher peroxidability index (P <.05). Feeding WPB limited the formation of metmyoglobin (P =.05) and reduced lipid oxidation (TSARS values) after 7 days of storage for raw meat (P =.024) or 4 days for cooked meat (P =.006). Feeding WPB increased meat antioxidant capacity (ORAC assay) in the lipophilic fraction (P =.017), but not in the hydrophilic. These results suggest that vitamin E in the pomegranate by-product contributed to the higher antioxidant capacity of meat from the WPB-fed lambs.

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