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| 哈萨克羊不同部位脂肪特性的研究 |
| Fat characteristics in different parts of Kazak sheep |
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| DOI： |
| 中文关键词: 哈萨克羊 理化性质 脂肪酸 挥发性成分 |
| 英文关键词:Kazak sheep physicochemical property fatty acid volatile component |
| 基金项目: |
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| 中文摘要: |
| 研究了新疆哈萨克羊不同部位脂肪的组成成分差异。采用气相色谱-质谱法对新疆哈萨克羊的肾周脂、网膜脂以及尾脂的脂肪酸组成及挥发性成分进行了分析。结果表明：在尾脂中共检测出20种脂肪酸，而在肾周脂和网膜脂中均检出17种脂肪酸；其中尾脂的饱和脂肪酸（SFA）含量为49.09%，以棕榈酸（C16∶?0）的含量最高；肾周脂中SFA的含量为59.44%；网膜脂中SFA的含量为64.00%；肾周脂和网膜脂中SFA均以硬脂酸（C18∶?0）的含量最高。在尾脂中不饱和脂肪酸（UFA）的含量为50.48%，在肾周脂中UFA的含量为38.95%，在网膜脂中UFA的含量为3515%；不同部位脂肪中UFA均以油酸（C18∶?1n-9c）的含量最高。羊脂中的挥发性物质主要由醛类、酯类、醇类和酮类组成。 |
| 英文摘要: |
| The component difference of fat in different parts of Xinjiang Kazak sheep was studied. The fatty acid composition and volatile component in Xinjiang Kazak sheep’s perirenal fat, omentum fat and tail fat were analyzed by gas chromatography-mass spectrometry. The results showed that 20 kinds of fatty acids were detected in tail fat, and perirenal fat and omentum fat contained 17 kinds of fatty acids respectively. The content of SFA in the tail fat was 49.09%, and the content of palmitic acid was the highest. The contents of SFA in perirenal fat and omentum fat were 64.00% and 59.44%, respectively. The content of stearic acid (C18∶?0) was the highest in SFA in perirenal fat and omentum fat. The contents of UFA in tail fat, perirenal fat and omentum fat were 50.48%, 38.95% and 35.15%, respectively. The content of oleic acid was the highest in UFA in different parts of fat. The volatile substances in mutton fat mainly included aldehydes, esters, alcohols and ketone. |
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