| 反式脂肪酸降低乳脂合成的机理 |
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| 引用本文： | 布同良,刘建新.反式脂肪酸降低乳脂合成的机理[J].中国牛业科学,2006,32(5):52-54. |
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| 作者姓名： | 布同良 刘建新 |
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| 作者单位： | 浙江大学奶业科学研究所,浙江,杭州,310029 |
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| 摘 要： | 乳中的反式脂肪酸直接来源于日粮脂肪或由瘤胃微生物氢化生成,本文重点介绍了反10-油酸和反10,顺12-共轭亚油酸两种不同反式脂肪酸对乳脂合成的影响,讨论了反式脂肪酸影响乳脂合成的机理,可能是反式脂肪酸通过抑制乳腺中脂肪酸合成的关键酶乙酰辅酶A羧化酶和脂肪酸合成酶的活性,进而导致乳脂合成的减少。
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| 关 键 词： | 乳脂降低 反式脂肪酸 牛乳 |
| 文章编号： | 1001-9111（2006）05-0052-03 |
| 收稿时间： | 2006-05-08 |
| 修稿时间： | 2006年5月8日 |
Mechanism of Depressed Milk Fat Synthesis by Trans Fatty Acids |
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| BU Tong-liang,LIU Jian-xin.Mechanism of Depressed Milk Fat Synthesis by Trans Fatty Acids[J].China Cattle Science,2006,32(5):52-54. |
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| Authors: | BU Tong-liang LIU Jian-xin |
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| Institution: | Institute of Dairy Science of Zhejiang University, Hangzhou , Zhejiang 310029, China |
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| Abstract: | The milk trans fatty acids are derived from diet or the biohydrogenation of dietary fat by rumen microbes. Discussion was focused on the effects of trans-18:1 and trans10, cis12-CLA on milk fat synthesis. The mechanism of depressing effects of trans fatty acid on milk fat was most probably caused by restraining the key enzyme's activity of mammary acetyl-CoA carboxylase and fatty acid synthase. |
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| Keywords: | Milk fat depression Trans fatty acid Milk |
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