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在不同的质蛋白质含量下,在质粉模型面发展过程中对水状态和水迁移的动态研究
Haoxuan Ye1,2, Yingquan Zhang1,3, Lei Wang1
1Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Comprehensive Utilization Laboratory of Cereal and Oil Processing, Ministry of Agriculture and Rural, Beijing 100193, China.
Foods (Basel, Switzerland)
|April 13, 2024
概括
质蛋白含量通过影响水的迁移,显著影响面团质量. 较高的质增加了水的吸收和面团的强度,但极端的水平可以损害质网络,影响水的结合和面团的发展.
科学领域:
- 食品科学 食品科学 食品科学
- 材料科学 是一种材料科学.
背景情况:
- 面团质量与混合工艺密切相关.
- 质蛋白质含量是面团特性和水的行为的一个关键决定因素.
- 了解面团发育过程中的水迁移对于优化食品加工至关重要.
研究的目的:
- 为了研究不同质蛋白含量 (GPC) 对面团法林仪参数的影响.
- 分析不同GPC的面团模型中的水迁移动态.
- 建立面团加工优化的理论基础.
主要方法:
- 制备有控制质蛋白含量的复合面粉 (10-26%,重/重).
- 面团 farinograph 测试,以评估水的吸收和面团强度.
- 低场核磁共振 (LF-NMR) 用于量化水的迁移.
- 微观结构分析以评估质网络的完整性.
主要成果:
- 增加GPC增强了水的吸收和面团强度.
- 更高的GPC促进了强结合水的结合和弱结合水的转化.
- 极端GPC水平 (10%和26%) 导致由于质网络损坏而导致自由水释放.
- 蛋白质二次结构的变化与弱结合的水迁移相关.
结论:
- 软结合的水在面团发育中起着至关重要的作用.
- 质蛋白含量显著调节水的迁移和面团的特性.
- 这些发现为通过GPC控制优化面团加工提供了理论基础.
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