title: Omega-3 fatty acids, nutrient retention values, and sensory meat eating quality in cooked and raw Australian lamb.
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/100g muscle) omega-3 fatty acids significantly (P<0.05) increased. The mean EPA+DHA content of the cooked meat at 32.8±2.3mg/100g muscle exceeded the minimum 30mg/100g 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.
authors.affiliation: Animal Science and Genetics, Tasmanian Institute of Agriculture, School of Land and Food, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 54 Sandy Bay, Hobart, TAS 7001, Australia.
authors.forename: Aaron Ross
authors.initials: AR
authors.lastname: Flakemore
authors.affiliation: College of Medicine and Dentistry, Division of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia.
authors.forename: Bunmi Sherifat
authors.initials: BS
authors.lastname: Malau-Aduli
authors.affiliation: Animal Science and Genetics, Tasmanian Institute of Agriculture, School of Land and Food, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 54 Sandy Bay, Hobart, TAS 7001, Australia; CSIRO Food Nutrition and Bio-based Products, Oceans and Atmosphere, Hobart, TAS 7001, Australia.
authors.forename: Peter David
authors.initials: PD
authors.lastname: Nichols
authors.affiliation: Animal Science and Genetics, Tasmanian Institute of Agriculture, School of Land and Food, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 54 Sandy Bay, Hobart, TAS 7001, Australia; Veterinary and Biomedical Sciences, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia. Electronic address: Aduli.MalauAduli@utas.edu.au.
authors.forename: Aduli Enoch Othniel
authors.initials: AEO
authors.lastname: Malau-Aduli
mesh_terms: D000273:Adipose Tissue / Q000737:chemistry; D000818:Animals; D003258:Consumer Behavior; D003296:Cooking; D004041:Dietary Fats / Q000032:analysis; D015525:Fatty Acids, Omega-3 / Q000032:analysis*; D005260:Female; D005511:Food Handling; D008297:Male; D018482:Muscle, Skeletal / Q000737:chemistry; D009753:Nutritive Value; D000069466:Red Meat / Q000032:analysis*; D034561:Sheep, Domestic; D013649:Taste
chemical_list: D004041:Dietary Fats; D015525:Fatty Acids, Omega-3
keywords: Cooking; Intramuscular fat; Lamb; Nutrient retention; Omega-3 fatty acids; Sensory