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澳大利亚生熟羊肉中的欧米伽-3脂肪酸、营养保留值及感官肉质食用品质

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

作者信息

Flakemore Aaron Ross, Malau-Aduli Bunmi Sherifat, Nichols Peter David, Malau-Aduli Aduli Enoch Othniel

机构信息

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.

College of Medicine and Dentistry, Division of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia.

出版信息

Meat Sci. 2017 Jan;123:79-87. doi: 10.1016/j.meatsci.2016.09.006. Epub 2016 Sep 13.

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 (≥C) 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.

摘要

本研究评估了市售澳大利亚羊腰肉排腰最长肌中ω-3肌肉脂肪酸的情况。去除外部脂肪的肉通过使用煎烤热板进行传导干热烹饪,使核心温度达到70°C。一个未经训练的消费者小组对肉的外观、香气、嫩度、多汁性、味道和总体喜好程度进行了评估。结果显示,烹饪处理对ω-3脂肪酸的成分没有改变(P>0.05),但从绝对值(毫克/100克肌肉)来看,ω-3脂肪酸显著增加(P<0.05)。煮熟肉的平均二十碳五烯酸(EPA)+二十二碳六烯酸(DHA)含量为32.8±2.3毫克/100克肌肉,超过了澳大利亚将煮熟羊肉定义为“来源”长链(≥C)ω-3所需的每可食用部分最低30毫克/100克的标准。初始生肉中3.4%的肌肉脂肪含量足以维持可接受的总体感官食用品质。结果支持应用这种烹饪方法,以便在不影响感官食用特性的情况下,将市售澳大利亚羊腰肉排中对健康有益的长链ω-3脂肪酸提供给消费者。

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