不同分子重量的氨酸对脱脂牛奶功能性质的影响
Rutvi Joshi1, Suresh G Sutariya1, Prafulla Salunke1
1Dairy and Food Science Department, South Dakota State University, Brookings, SD 57007, USA.
Foods (Basel, Switzerland)
|March 13, 2024
概括
这项研究研究了不同分子量 (MW) 的氨酸 (HA) 如何影响脱脂牛奶的特性. 高MW HA改善了水结合和乳液,但降低了热和蛋白质的稳定性.
科学领域:
- 食品科学 食品科学 食品科学
- 类风病学 类风病学 类风病学
- 乳制品科学 乳制品科学
背景情况:
- 氨酸 (HA) 是一种经批准用于食品应用的多糖,以增加粘度而闻名.
- 它的不同分子量 (MW) 提供了多样化的功能,但它们对乳制品基质的影响仍然未被探索.
研究的目的:
- 为了评估不同MW酸 (8 kDa,320 kDa,980 kDa,250 kDa) 对脱脂牛奶特性的影响.
- 调查对风湿学,功能属性和蛋白质/热稳定性的影响.
主要方法:
- 脱脂牛奶被处理了0.25% (w/w) 的四种不同的MW氨酸.
- 分析了风病学特性,热稳定性,蛋白质稳定性和功能属性.
主要成果:
- 所有HA添加物都增加了表面粘度;更高的MW (980kDa,2550kDa) 降低了蛋白质和热稳定性.
- 增加的MW增强了水容量 (WHC),乳液和泡稳定性,但减少了泡活动.
- 没有观察到蛋白质分数或颗粒大小的显著变化.
结论:
- 分子重量显著影响 Hyaluronic 酸在脱脂牛奶中的功能和稳定性作用.
- 了解这些依赖于MW的特性对于优化乳制品开发中的HA使用至关重要,特别是在粘度和水结合方面.
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