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Improving oxidative stability of omega-3 enriched pork meat by addition of food grade sugars and sensory characterization of cooked and re-warmed pork meat patties by free choice profiling

  • Author / Creator
    PEETHAMBARAN, KRISHNADAS
  • Meat patties (15% fat) were made using pork trim obtained from pigs fed a control diet or a diet containing 10% flax for 6 weeks, with vitamin E added at either 40 mg/kg feed (control) or 400 mg/kg feed in a 2×2 factorial design. Food grade sugars sucrose, glucose, xylose or no sugar (control) were added at a 2% level to ground pork in a split plot design. Dietary flax supplementation increased n-3 fatty acid concentrations and reduced n-6: n-3 ratio. Addition of sugars (glucose and sucrose) improved the oxidative stability of all meat patties over refrigerated storage and provided oxidative stability to only the high vitamin E/No flax treatment after cooking as measured by thiobarbituric acid reactive substances assay. Sensory study using free choice profiling approach conducted on pork meat patties showed that addition of sugars produced distinct sensory characteristics irrespective of the source grind fatty acid or tocopherol composition.

  • Subjects / Keywords
  • Graduation date
    2011-11
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R36D8W
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
    English
  • Institution
    University of Alberta
  • Degree level
    Master's
  • Department
    • Department of Agricultural, Food, and Nutritional Science
  • Supervisor / co-supervisor and their department(s)
    • Bruce, Heather (Agricultural, Food and Nutritional Science)
  • Examining committee members and their departments
    • Curtis, Jonathan (Agricultural, Food and Nutritional Science)
    • Goddard, Ellen (Rural Economy)
    • Aalhus, Jennifer (Agricultural, Food and Nutritional Science)
    • Zijlstra, Ruurd (Agricultural, Food and Nutritional Science)
    • Wismer, Wendy (Agricultural, Food and Nutritional Science)