功能性水友性聚合物的合理开发,以表征牛奶和母乳之间特定地点的糖甘差异
Qi Wang1, Xiaoyan Liu2, Yanan Li3
1MOE Key Laboratory of Bio-Intelligent Manufacturing, School of Bioengineering, Dalian University of Technology, Dalian, 116000, Liaoning, China; State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
Food chemistry
|August 2, 2024
概括
研究人员开发了一种新型聚合物,用于丰富和分析牛奶蛋白上的N-糖化. 这种方法有效地确定了牛奶和母乳中的明显的糖化模式,有助于功能性食品的开发.
科学领域:
- 生物化学 生物化学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- N-糖化是分泌蛋白质的关键翻译后修饰,在牛奶中特别丰富和动态.
- 鉴别牛奶蛋白质的糖化对理解生物功能和开发功能性食物至关重要.
- 牛奶中糖的丰度较低,因此需要有效的丰富策略.
研究的目的:
- 开发一种新型的多功能聚合物,以有效地从复杂的牛奶样本中分离和丰富糖.
- 描述和比较牛奶和母乳蛋白的N-糖化模式.
- 为功能性食品开发的潜在应用提供对糖化化差异的见解.
主要方法:
- 合理设计和可控合成一个多功能聚合物,集成水友相互作用色谱 (HILIC),金属离子亲和力和离子交换.
- 优化聚合物性能通过微调Ca2+以适应氨酸 (HA) 形状和接种密度,通过Ti4+接种进一步增强聚合物的性能.
- 开发的材料用于从牛奶和母乳样本中富含糖的应用.
主要成果:
- 这种新型聚合物有效地从复杂的背景中分离了糖.
- 该材料从牛奶中获得了479个完整的糖和611个来自乳酪.
- 对比分析揭示了鲜明的甘氨基化模式和牛奶和母乳之间糖蛋白丰度分布.
结论:
- 开发的多功能聚合物对从牛奶中丰富糖具有高度有效性.
- 在牛奶和母乳之间存在明显的N-糖化样.
- 这些发现为推进基于牛奶糖蛋白的功能性食品开发提供了宝贵的见解.
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