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Effects of rendering and α-tocopherol addition on the oxidative stability of horse fat

  • Man Jae Cho
  • Hyun Jung KimEmail author
Article
  • 7 Downloads

Abstract

Oxidative stability of horse fat rendered at 70 °C, − 0.1 MPa under vacuum and 110 °C, 0.1 MPa from horse fatty tissues was investigated after the addition of α-tocopherol at 0, 30, 60, and 150 mg/kg during storage at 60 °C in the dark. Peroxide values of initial horse fat rendered at 70 °C under vacuum ranged from 6.10 to 7.40 meq/kg. After 14 days, those of horse fat with α-tocopherol at 0, 30, 60, and 150 mg/kg increased to 142.40, 34.10, 39.37, and 58.23 meq/kg, respectively. Acid values and thiobarbituric acid values of horse fat rendered at 70 °C were lower than those of horse fat at 110 °C. Unsaturated fatty acids contents of horse fat rendered at 70 °C and 110 °C were 58.04 and 57.15%, respectively. These results indicate that rendering at 70 °C under vacuum improved the oxidative stability of horse fat and the addition of α-tocopherol helped to prevent lipid oxidation.

Keywords

Horse fat Oxidative stability Rendering temperature α-Tocopherol Fatty acid 

Notes

Acknowledgements

This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (NRF-2017R1C1B5016456).

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Copyright information

© The Korean Society of Food Science and Technology 2019

Authors and Affiliations

  1. 1.Jeju Special Self-Governing Province Institute of Health and Environment ResearchJejuRepublic of Korea
  2. 2.Department of Food BioengineeringJeju National UniversityJejuRepublic of Korea

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