基于化学和非向性脂管学分析,对在巴氏化牛奶储存期间的脂质氧化进行了洞察
Haixia Yan1, Youzhi Zhang1, Na Chen2
1The College of Food Science, Shenyang Agricultural University, Shenyang, China.
Food chemistry
|July 1, 2025
概括
消毒牛奶脂质氧化在六天后加速,其中甘油脂 (GL) 和甘油脂 (GPs) 是关键. 糖是储存期间的主要氧化基质,影响牛奶质量.
科学领域:
- 食品科学 食品科学 食品科学
- 脂质化学 脂质化学
- 分析化学 分析化学
背景情况:
- 脂质氧化是乳制品的一个主要问题,影响质量和保质期.
- 了解特定的脂类及其在储存期间的转化对于开发减轻策略至关重要.
研究的目的:
- 为了研究冷藏期间巴氏消毒牛奶的脂质氧化特性.
- 为了确定参与氧化中的关键脂质,并阐明它们的代谢途径.
主要方法:
- 化学分析和脂管学被用来分析在4°C保存15天的牛奶样本.
- 脂类的量化和识别,包括甘油 (GL) 和甘油脂 (GP).
主要成果:
- 六天后氧化进展,GLs和GP作为关键的差异性脂质.
- 和GL经历了持续的氧化和水解;88%的不和GL在氧化后重新化.
- 再化不和GLs形成结合结构和和化.
- 牛奶脂肪球膜 (MFGM) 上的GPs和内部GLs同时氧化,内部单层中的GPs更容易重新化.
结论:
- 糖 (GLs) 是在储存期间在巴氏消毒牛奶中最关键的氧化基质.
- 脂质组学提供了详细的洞察力,了解食品储存期间复杂的脂质转化.
- MFGM的组成影响了脂质氧化和再化动态.
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