Omega-3 fatty acids, nutrient retention values, and sensory meat eating quality in cooked and raw Australian lamb

Flakemore, Aaron Ross, Malau-Aduli, Bunmi Sherifat, Nichols, Peter David, and Malau-Aduli, Aduli Enoch Othniel (2017) Omega-3 fatty acids, nutrient retention values, and sensory meat eating quality in cooked and raw Australian lamb. Meat Science, 123. pp. 79-87.

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Abstract

This study evaluated omega-3 intramuscular fatty acids in the longissimus thoracis et lumborum of commercially prepared Australian lamb loin chops. Meats, denuded of external fats were cooked by means of conductive dry-heat using a fry grilling hot plate, to a core temperature of 70 °C. An untrained consumer panel assessed meat appearance, aroma, tenderness, juiciness, taste and overall liking. Results showed no compositional alterations (P > 0.05) to omega-3 fatty acids due to cooking treatment, whereas on absolute terms (mg/100 g muscle) omega-3 fatty acids significantly (P < 0.05) increased. The mean EPA + DHA content of the cooked meat at 32.8 ± 2.3 mg/100 g muscle exceeded the minimum 30 mg/100 g per edible portion required for the defined Australian classification as 'source' long-chain (≥ C20) omega-3 for cooked lamb. A 3.4% intramuscular fat content in the initial raw meat was sufficient to maintain acceptable overall sensory eating quality. Results endorse the application of this cooking method to enable delivery of health beneficial long-chain omega-3 fatty acids of commercially prepared Australian lamb loin chops to consumers without impediments to sensory eating properties.

Item ID: 45749
Item Type: Article (Refereed Research - C1)
Keywords: lamb; nutrient retention; cooking; intramuscular fat; omega-3 fatty acids; sensory
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ISSN: 1873-4138
Funders: Australian Postgraduate Award, University of Tasmania (UTAS)
Date Deposited: 19 Sep 2016 22:55
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0702 Animal Production > 070204 Animal Nutrition @ 50%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0702 Animal Production > 070201 Animal Breeding @ 50%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8303 Livestock Raising > 830310 Sheep - Meat @ 100%
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