Dietary versus post-mortem use of oregano oil and/or alpha-tocopherol in turkeys to inhibit development of lipid oxidation in meat during refrigerated storage

Govaris et al., 2004 | Int J Food Sci Nutr | Rct

Citation

Govaris A, Botsoglou N, ... Ambrosiadis I. Dietary versus post-mortem use of oregano oil and/or alpha-tocopherol in turkeys to inhibit development of lipid oxidation in meat during refrigerated storage. Int J Food Sci Nutr. 2004-Mar;55(2):115-23

Abstract

The dietary and post-mortem uses of oregano oil in turkeys to inhibit development of lipid oxidation in breast and thigh meat during refrigerated storage were investigated. Using minced meat, patties were prepared from turkey meat post-mortem added with either 200 mg oregano oil or alpha-tocopherol/kg, meat from turkeys dietary supplemented with either 200 mg oregano oil or alpha-tocopheryl acetate/kg feed, and control meat. All patties were cooked, placed in a refrigerated cabinet at 4 degrees C, and lipid oxidation was assessed by monitoring malondialdehyde formation after 3, 6 and 9 days of storage. Treatments significantly (P<0.05) retarded lipid oxidation in both breast and thigh meat patties at all storage times compared with controls. The dietary supplementation of either oregano oil or alpha-tocopheryl acetate exhibited the highest antioxidative activity compared with the other treatments. Post-mortem addition of either oregano oil or alpha-tocopherol to the minced meat also retarded lipid oxidation in the prepared patties compared with controls; however, this effect was inferior to that of the dietary supplementation even though the post-mortem alpha-tocopherol supplemented meat contained 90-fold more alpha-tocopherol than patties from the dietary supplemented meat. Thigh meat was more susceptible to oxidation than breast meat, although the former contained alpha-tocopherol at markedly higher levels. Supplementing the diet with 200 mg oregano oil/kg, alpha-tocopherol levels in the breast and thigh meat significantly (P<0.05) increased compared with control. This increase could not be attributed to the alpha-tocopherol already present in the oregano oil since post-mortem addition of oregano oil to control breast and thigh meat at the same dose could not actually increase the alpha-tocopherol concentrations.

Key Findings

This increase could not be attributed to the alpha-tocopherol already present in the oregano oil since post-mortem addition of oregano oil to control breast and thigh meat at the same dose could not actually increase the alpha-tocopherol concentrations.

Outcomes Measured

  • Requires manual extraction

Population

Field Value
Population See abstract
Sample Size See abstract
Age Range See abstract
Condition See abstract

MeSH Terms

  • Animal Nutritional Physiological Phenomena
  • Animals
  • Dietary Supplements
  • Female
  • Food Handling
  • Food Preservation
  • Lipid Peroxidation
  • Malondialdehyde
  • Meat
  • Origanum
  • Plant Oils
  • Poultry Products
  • Refrigeration
  • Turkeys
  • alpha-Tocopherol

Evidence Classification

  • Level: Rct
  • Publication Types: Clinical Trial, Comparative Study, Journal Article, Randomized Controlled Trial
  • Vertical: oregano-oil

Provenance

  • PMID: 14985183
  • DOI: (not available)
  • PMCID: Not in PMC
  • Verified: 2026-04-12 via PubMed E-utilities API

Source extracted via PubMed E-utilities API on 2026-04-12