pH对哈洛米类奶酪微观结构,质和功能性质的影响:pH与结构-功能关系
Xiaoxuan Zhao1, Yumeng Zhang1, Gaoyang Cui1
1Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Food chemistry: X
|December 24, 2025
概括
这项研究表明,pH值显著影响Halloumi奶酪的特性. 烤性能的最佳pH值是极端的 (高于6.41或低于4.69),影响化能力和油脂释放.
科学领域:
- 食品科学与技术 食品科学与技术
- 乳制品科学 乳制品科学
- 材料科学 是一种材料科学.
背景情况:
- 在过程中,Halloumi型奶酪表现出独特的功能性质.
- 了解pH等加工参数的影响对于优化奶酪质量至关重要.
- 之前的研究还没有完全阐明pH值如何影响Halloumi的可溶性和微观结构的具体机制.
研究的目的:
- 为了研究pH值对Halloumi型奶酪的微观结构和功能性质的影响.
- 为了确定最佳的pH值范围,以获得理想的特性,例如不和控制油释放.
- 阐明pH,含量,蛋白质网络结构和可溶性之间的关系.
主要方法:
- 哈洛米 (Halloumi) 类型的奶酪是从牛奶中生产的,它的pH值被系统地改变.
- 进行了微观结构分析,包括毛孔大小和脂肪聚合.
- 测量了功能性质,如凝时间 (RCT),水容量 (WHC),储存模量,融化流量和油释放.
- 福利埃变换红外光谱法 (FTIR) 用于分析蛋白质相互作用和合体酸盐 (CCP) 状态.
主要成果:
- 在油炸过程中,不化和理想油释放的最佳pH值被发现高于6.41或低于4.69.
- 降低pH值至5.33降低了RCT至4.5分钟, (Ca) 含量降低了89.4%,WHC增加了16.7%.
- 在pH值6.53和5.33之间,CCP溶解削弱了蛋白质网络,增加了融流和油释放. 在pH值低于4.69时,增加了疏水相互作用和结合,增强了凝强度,减少了融流和油释放.
结论:
- pH 是调节 Halloumi 类型奶酪的可融性和行为的一个关键因素.
- pH值的变化显著改变奶酪的微观结构,Ca含量和蛋白质相互作用,影响功能性质.
- 控制pH值允许针对特定应用进行针对性的修改Halloumi奶酪特性.
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