糖化乳清蛋白分离物对小麦粉凝化,凝性质和微观结构的影响
Changqing Zhang1, Yang Liu2, Wenhan Xu1
1College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China.
International journal of biological macromolecules
|December 14, 2024
概括
糖化乳清蛋白分离物 (gWPI) 有效调节小麦粉 (WS) 凝化,通过抑制水的吸收和粉溶解来改善凝性质. 这使得gWPI成为修改粉特性的一种有前途的添加剂.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
背景情况:
- 乳清蛋白分离物 (WPI) 和乳糖反应形成糖化乳清蛋白分离物 (gWPI).
- 了解转基因蛋白和粉之间的相互作用对于食品加工至关重要.
研究的目的:
- 调查gWPI对小麦粉 (WS) 凝化和凝性能的影响.
- 为了阐明在gWPI添加后WS的微结构变化.
主要方法:
- 快速粘度分析仪 (RVA) 和差分扫描热量计 (DSC) 用于热分析.
- 风湿学测量以评估凝粘性.
- 原子力显微镜 (AFM) 用于研究微观结构变化.
主要成果:
- gWPI显著抑制了WS凝化,以剂量依赖的方式降低了峰值粘度和凝化度.
- gWPI在水上竞争,阻碍了WS的水吸收和膨胀,导致凝粘性降低.
- gWPI与WS形成了键,抑制了粉溶解,减少了粉颗粒大小和结合能力.
结论:
- gWPI作为小麦粉的有效凝化调节剂.
- 添加gWPI可以改善粉凝的特性,并修改其微观结构.
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