1. Shelf life of meat from Boer-Saanen goats fed diets supplemented with vitamin E.
- Author
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Possamai APS, Alcalde CR, Feihrmann AC, Possamai ACS, Rossi RM, Lala B, Claudino-Silva SC, and Macedo FAF
- Subjects
- Animal Feed analysis, Animals, Consumer Behavior, Diet veterinary, Humans, Malondialdehyde analysis, Muscle, Skeletal, Thiobarbituric Acid Reactive Substances analysis, Vitamin E, Antioxidants pharmacology, Food Storage, Goats, Red Meat standards, alpha-Tocopherol pharmacology
- Abstract
This work aims at evaluating shelf life of meat from Boer-Saanen cross goats fed on diets containing vitamin E. Thirty-five feedlot-fed goats with an initial body weight of 21.6±2.8kg were subjected to four treatments in a completely randomized design: a control treatment with vitamin E plus others containing 50, 150, and 450mg dl-α-tocopherol acetate/kg DM. Longissimus lumborum (LL) muscle samples were stored at temperatures between 4 and 6°C during 15days, and evaluated for lipid peroxidation using the thiobarbituric acid reactive substances (TBARS) method and for visual acceptance by consumers by different survival analysis techniques. The addition, vitamin E in diets influenced shelf life of LL muscle, indicating longer meat preservation as the levels of the vitamin in diet increased, as the results obtained in chemical and subjective visual assessments showed. TBARS analysis showed to be more accurate in predicting shelf life of meat than subjective visual assessment by consumers, which reached a saturation threshold of 2mg malonaldehyde/kg of meat earlier at all tested levels of vitamin E inclusion., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
- Published
- 2018
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