关于通过超声波协同的改善蛋白乳化特征的机制研究:物理化学性质,分子灵活性,蛋白质结构
Pei Zhang1, Lan Liu2, Qun Huang1
1School of Public Health, Guizhou Province Engineering Research Center of Health Food Innovative Manufacturing, Guizhou Medical University, Guiyang 550025, China; College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Ultrasonics sonochemistry
|October 16, 2024
概括
超声波与 (CI) 治疗相结合,通过改善分子灵活性和微观结构,增强了蛋白蛋白 (EWP) 乳化特性. 这种新的方法显著提高了对更广泛的EWP应用的乳化活性和稳定性.
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
- 生物技术是生物技术.
背景情况:
- 蛋白蛋白 (EWP) 是一种具有潜在应用的天然乳化剂.
- 提高EWP的乳化特性对于其更广泛的使用至关重要.
- 现有的EWP修改方法具有局限性.
研究的目的:
- 为了研究超声波协同 (CI) 治疗对EWP的影响.
- 分析对EWP微观结构,分子灵活性和乳化特性的影响.
- 用分子对接来预测醇和卵胺之间的相互作用.
主要方法:
- 超声波协同 (CI) 治疗EWP.
- 物理化学分析包括粒子大小, ζ-电位和界面张力.
- 光谱分析 (FT-IR,光) 来评估结构变化.
- 分子对接以预测蛋白质-配体相互作用.
主要成果:
- 通过减少自由氨基酸含量和增加分子量,成功将CI移植到EWP上.
- UCEWP (超声协同治疗的EWP) 显示出更小的颗粒大小和更高的z-电位,提高了稳定性.
- UCEWP显著降低了界面张力,从而改善了乳化活性指数 (EAI) 和乳化稳定指数 (ESI).
- 结构分析显示,UCEWP中的分子灵活性增加和二级/三级结构混乱.
- 分子灵活性与增强的乳化特性正相关.
结论:
- 超声波协同治疗是一种有效的方法,可以增强EWP的分子灵活性和乳化特性.
- 优化UCEWP的性能为其作为功能性食品成分的应用提供了宝贵的见解.
- 这项研究为在各种食品系统中使用改性EWP提供了科学依据.
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