菜蛋白的分子调节,以改善其技术功能性质
Feng Shao1, Yuanlong Zhang1, Xia Wan2
1School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
International journal of biological macromolecules
|July 2, 2024
概括
乳清蛋白 (WP) 和 zein 通过改变其分子结构来增强菜蛋白 (RP) 的功能. 这种联合组装改善了溶解性,泡和乳化等特性,提供了一种新的蛋白质修饰策略.
科学领域:
- 食品科学与技术 食品科学与技术
- 蛋白质化学 蛋白质化学
- 生物材料工程 生物材料工程
背景情况:
- 菜蛋白 (RP) 在许多应用中具有低于最佳的技术功能性质.
- 修改蛋白质结构是提高功能的关键.
- 与其他蛋白质一起组装提供了蛋白质修饰的潜在策略.
研究的目的:
- 改进油菜蛋白 (RP) 的技术功能性质.
- 通过诱导RP与和乳清蛋白 (WP) 的联合组装来实现这一目标.
- 调查结构变化和由此产生的财产增强.
主要方法:
- 菜蛋白 (RP) 与和乳清蛋白 (WP) 的联合组装.
- 对结构形状,表面电荷,水友性和分子大小的分析.
- 评估技术功能性质,包括水溶性,发泡能力,乳化活性和体外胃消化.
主要成果:
- 乳清蛋白 (WP) 和受调节的RP通过疏水和二硫化键折叠,形成稳定的复合RP (CRP).
- WP增加了表面电荷,水性,水溶性和体外消化 (10%至60%),同时减少了蛋白质大小.
- 泽因增强了CRP的疏水性和乳化活性指数 (22到90m2/g),改变了凝质感特性.
结论:
- 与WP和zeen共同组装显著改善了油菜蛋白 (RP) 的技术功能性质.
- WP增强了溶解性,发泡性和消化性,而Zeen增强了乳化和修改了凝质地.
- 这项研究提出了一种有效的策略,通过受控的联合组装来修改蛋白质功能.
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