技术过程和温度对水牛牛奶,乳酪和奶油中的脂的影响
Marika Di Paolo1, Valeria Pelizzola2, Lucia De Luca3
1Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, 80137 Naples, Italy.
Foods (Basel, Switzerland)
|August 14, 2025
概括
在牛奶,乳清和奶油中分析了对健康至关重要的水牛奶脂. 当地乳清含有更高的脂含量,特别是酸乙烯胺和酸胆,为乳制品行业提供了洞察力.
科学领域:
- 乳制品科学 乳制品科学
- 食品化学 食品化学
- 生物化学 生物化学
背景情况:
- 牛奶脂肪球膜 (MFGMs) 含有具有已知的健康益处的脂 (PLs).
- 雄牛奶是全球重要的来源,其MFGM脂特征仍未得到充分研究.
- 了解水牛奶PLs对于利用其营养价值和潜在应用至关重要.
研究的目的:
- 为了研究和比较水牛牛奶,乳清和奶油的脂成分.
- 评估牛奶加工和农场原产地对脂含量的影响.
- 在水牛乳制品副产品中识别关键脂类.
主要方法:
- 脂从牛奶,乳清和奶油中提取,使用固态提取方法.
- 使用蒸发光散射探测器 (HPLC/ELSD) 的高性能液态色谱用于识别和量化.
- 确定了五种主要的脂类:酸丁胆 (PC),酸丁乙醇胺 (PE),酸丁 (PI),酸丁 (PS) 和甲 (SM).
主要成果:
- 热处理并没有显著改变牛奶脂含量.
- 当地乳清的总脂度高于GDO乳清,主要是PE和PC.
- 农场A的整体脂含量高于农场B,SM显著增加.
- 奶含有最低的脂含量.
结论:
- 雄牛奶及其副产品是各种脂的丰富来源.
- 加工和农场原产地影响水牛乳制品中的脂度.
- 这些发现支持对水牛乳制品副产品的价值化,因为它们的脂含量和潜在的健康益处.
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