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豆蛋白分离微凝颗粒的增强功能性质与酸改性:混合物和结合物
Xiaojia Yan1, Xiangqi Bai1, Xuebo Liu1
1College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
Food chemistry
|January 24, 2024
概括
豆蛋白分离微凝颗粒 (PPIMP) 用酸 (SA) 进行修改,以改善其功能性质. 由此产生的PPIMP-SA合物显示出增强的热稳定性,抗氧化剂和乳化能力,用于食品应用.
科学领域:
- 食品科学 食品科学 食品科学
- 生物材料工程 生物材料工程
- 蛋白质化学 蛋白质化学
背景情况:
- 蛋白质微凝为各种应用提供了理想的接口和功能性质.
- 豆蛋白分离微凝颗粒 (PPIMP) 是一个有前途的软颗粒类.
- 修改蛋白质微凝可以提高它们在食品系统中的性能.
研究的目的:
- 为了制备和表征藻酸盐 (SA) 改性豆蛋白分离微凝颗粒 (PPIMP-SA).
- 研究聚合物比率和pH对PPIMP-SA形成的影响.
- 评估PPIMP-SA结合物的功能性质,用于食品应用.
主要方法:
- 通过热处理和转氨酸酶交叉连接来制备PPIMP.
- 使用梅拉德反应对PPIMP与SA进行非共价和共价修改.
- 优化PPIMP:SA比率 (20:1) 和pH (7和10).
- 超声波治疗以提高糖化程度 (高达37.21%).
- 使用SDS-PAGE,色强度和FTIR进行表征.
主要成果:
- 确定了PPIMP-SA结合体形成的最佳条件.
- 超声波显著增强了PPIMP的糖化.
- 通过多种分析技术证实了PPIMP-SA合物的形成.
- 与PPIMP和PPIMP-SA混合物相比,PPIMP-SA合物表现出优越的热稳定性,抗氧化活性,乳化和发泡特性.
结论:
- PPIMP-SA结合物具有增强的功能性质,使其适用于各种食品应用.
- 该研究强调了改性蛋白质微凝作为功能性食品成分的潜力.
- 优化的修改策略可以为食品工业中的基于蛋白质的材料开启新的机会.
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