低乳糖和低血清蛋白的牛奶蛋白饮料的生产使用微过
Kai Ow-Wing1, David M Barbano2, MaryAnne Drake1
1Southeast Dairy Foods Research Center, North Carolina State University, Raleigh, NC 27695.
Journal of dairy science
|April 20, 2024
概括
微过有效地从脱脂牛奶中去除乳糖和血清蛋白质,从而产生蛋白质饮料. 随后的UHT加工结果是蛋白质聚合,但没有异味或棕色.
科学领域:
- 食品科学 食品科学 食品科学
- 乳制品技术 乳制品技术
- 膜过器 膜过器 膜过器
背景情况:
- 脱脂牛奶含有乳糖,矿物质和血清蛋白,以及素.
- 开发高蛋白饮料需要修改脱脂牛奶成分.
- 微过提供了一种方法来分化牛奶成分.
研究的目的:
- 评估微过对脱脂牛奶特性的影响.
- 评估蛋白质饮料中的化学,物理和感官变化.
- 为了确定UHT加工对微过牛奶饮料的影响.
主要方法:
- 在50°C下使用0.1μm陶膜进行脱脂牛奶微过 (MF).
- 透过的水与牛奶的比率大约为2.5.
- 直接注入蒸汽的超高温 (UHT) 处理在140°C下2-3秒.
主要成果:
- 微过同时去除了乳糖,可溶性矿物质和血清蛋白质.
- 饮料的低点 (-0.02°C) 和pH值在7.19到7.41之间.
- 超高温处理导致显著的蛋白质聚合 (0.16微米至22微米),但没有硫味或色.
- 粘度随着蛋白质度和热处理而增加.
结论:
- 微过对于从脱脂牛奶中生产富含蛋白质的饮料是有效的.
- 在不引起不必要的感官属性的情况下,可以应用UHT过程.
- 在这些饮料中,蛋白质聚合是UHT治疗后的关键身体变化.
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