作为奶酪脂肪的替代品,乳清蛋白构成的油脂:通过蛋白质结构修饰来调节奶酪的功能行为
Si-Jie Wu1, Ran Feng1, Zi-Yue Chen1
1Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, 193 Tunxi Road, Hefei, Anhui 230009, PR China; School of Food and Biological Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei, Anhui 230009, PR China.
Food chemistry
|June 1, 2025
概括
乳清蛋白聚合物 (WPA) 可以被设计成有效的油脂凝,用于奶酪中的脂肪替代. 定制WPA结构优化了油结合,改善了奶酪的质地和稳定性.
科学领域:
- 食品科学 食品科学 食品科学
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
背景情况:
- 乳清蛋白聚合物 (WPA) 是具有独特功能性质的新型油剂.
- 了解WPA的结构功能关系对于其应用至关重要.
研究的目的:
- 调查日油中WPA结构和油凝性能之间的联系.
- 评估WPA作为奶酪配方中的潜在脂肪替代品.
主要方法:
- 控制的热变性和乳清蛋白的聚合.
- 调节加热条件 (85-95°C/15分钟) 和蛋白质度 (5-20%).
- 描述WPA微结构和评估油凝的特性.
主要成果:
- 设计了不同的WPA微结构,显示了结构-功能依赖.
- 大型WPA (28.1μm) 显示出更高的油持有能力 (85.4%).
- 更小的WPA (21.3微米) 显示出增强的固体状性质和热稳定性.
结论:
- 通过调节其分子结构以适应特定应用,可以定制WPA油脂.
- 酸油凝作为奶酪中的惰性填充剂,改善质地和粘性弹性.
- 这项研究为使用WPA的奶酪有效替代脂肪提供了洞察力.
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