牛奶脂肪球的大小是否与动物的牛奶脂肪含量相关?
Menglu Zhang1, Zhentao Liu2, Fangyuan Kang2
1Henan International Joint Laboratory of Nutrition Regulation and Ecological Raising of Domestic Animal, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046 PR China.
Food chemistry
|December 3, 2023
概括
牛奶脂肪球 (MFG) 尺寸与天然牛和山羊的牛奶脂肪含量没有相关性. 然而,结合烯酸 (CLA) 补充剂改变了MFG大小及其与牛奶脂肪的相关性,这表明CLA影响了MFG分布.
科学领域:
- 乳制品科学 乳制品科学
- 动物营养 动物营养
- 食品科学 食品科学 食品科学
背景情况:
- 牛奶脂肪球体 (MFG) 是牛奶中脂肪的主要形式.
- 在反动物中,MFG大小和牛奶脂肪含量之间的关系是有争议的.
- 了解MFG的大小分布对于牛奶的加工和质量至关重要.
研究的目的:
- 为了研究MFG大小和乳牛和山羊的乳脂含量之间的相关性.
- 为了确定是否结合烯酸 (CLA) 补充剂会影响MFG大小及其与牛奶成分的关系.
- 阐明影响MFG大小和在反动物牛奶中的分布的因素.
主要方法:
- 在乳牛和山羊身上进行了两项实验.
- 动物被分为正常,低脂肪和CLA诱导的低脂肪组.
- 分析了牛奶成分,MFG大小和MFG分布.
主要成果:
- 在正常和低脂肪组中,没有发现MFG大小与牛奶脂肪,蛋白质或乳糖含量之间的相关性.
- 补充CLA诱导了MFG大小和牛奶脂肪含量以及脂肪与蛋白质的比率之间的相关性.
- 补充CLA显著改变了MFG的大小分布.
结论:
- 在天然牛奶中,MFG大小与反动物的牛奶脂肪含量没有相关性.
- 结合烯酸 (CLA) 影响MFG的大小和分布,影响与牛奶脂肪含量的相关性.
- CLA,而不是牛奶脂肪含量本身,似乎是MFG特征变化的主要驱动因素.
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