中国乳业 ›› 2024, Vol. 0 ›› Issue (5): 123-130.doi: 10.12377/1671-4393.24.05.23
孟毅1, 周银焜1, 魏怡2, 薛海燕2,*, 刘晓凤2
MENG Yi1, ZHOU Yinkun1, WEI Yi2, XUE Haiyan2,*, LIU Xiaofeng2
摘要: 以我国关中地区中国荷斯坦牛与奶山羊为研究对象,基于非靶向脂质组学技术,分析乳脂肪球膜脂质,筛选膜上差异脂质。结果表明,在牛羊乳MFGM中分别检测到3 004 种和2 857 种脂质。牛乳中磷脂、糖脂、固醇和鞘脂分别占除甘油酯外其他脂质总含量75.94%、8.29%、3.82%和3.76%,羊乳中分别为66.98%、12.42%、4.27%、3.57%。此外,牛羊MFGM上存在1 496 种显著性差异脂质,其中TG(17︰0/10︰0/22︰6)、TG(16︰0e/8︰0/18︰1)、TG(8︰0/10︰4/14︰2)、TG(14︰0/14︰0/22︰6)和DG(15︰0/16︰0)等甘油酯分子与CL(87︰12)、PE(41︰2e)、SM(t39︰7)、CL(66︰1)、MePC(29︰2e)、PE(16︰0/16︰1)和PI(18︰1/20︰3)等MFGM脂质分子可用于牛羊乳分类鉴定以及区别检测靶点,为牛羊乳脂质检测提供理论基础。
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