在各种加热温度,pH值和离子强度下,大豆蛋白颗粒具有增强的抗聚合行为
Xiaohan Zheng1, Chao Ren1, Yixue Wei1
1School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, China; National Engineering Research Center of Seafood, China; Liaoning Key Laboratory of Food Nutrition and Health, China; Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, China.
Food research international (Ottawa, Ont.)
|June 14, 2023
概括
研究人员通过预热开发出耐热的大豆蛋白颗粒 (SPPs). 这些SPP在各种加工条件下比未经处理的大豆蛋白 (SPs) 更好地抵抗聚合,从而实现了创新的食品应用.
科学领域:
- 食品科学 食品科学 食品科学
- 蛋白质化学 蛋白质化学
- 材料科学 材料科学 材料科学
背景情况:
- 加热对于加工富含蛋白质的食物至关重要,但会导致不良的蛋白质聚合.
- 蛋白质聚合限制了蛋白质在水系统中的应用.
- 开发稳热的蛋白质成分对于食品创新至关重要.
研究的目的:
- 制造具有增强性能的耐热大豆蛋白颗粒 (SPP).
- 在各种条件下,与未经处理的大豆蛋白 (SPs) 相比,研究SPPs的聚合行为.
- 为创造稳定的蛋白质成分提供理论见解.
主要方法:
- 豆蛋白颗粒 (SPPs) 是通过在120°C预热豆蛋白 (SPs) 30分钟来制备的.
- 动态光散射,原子力显微镜和冷扫描电子显微镜被用来分析聚合.
- 在不同温度,pH值和离子强度下研究聚合.
主要成果:
- 与SPS相比,SPP表现出更高的变性,形状刚性和表面电荷.
- SPPs显示了显著减少颗粒大小的增加和增强的抗聚合能力.
- 在酸性条件下,在盐离子的存在下,SPPs的颗粒大小增长率低于SPs.
结论:
- 预热有效地产生热稳定的大豆蛋白颗粒 (SPPs).
- 与原生大豆蛋白相比,SPPs对聚合具有更高的抗性.
- 这些发现支持对高级蛋白质丰富食品成分的SPP的开发.
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