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梅拉德反应在增加大豆蛋白分离物与花素之间的亲和力方面的作用及其对蛋白质功能的影响

Jiran Qin¹, Juanjuan Shao², Taorui Yin¹

¹College of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.

International journal of biological macromolecules

|February 22, 2025

概括

梅拉德反应改善了大豆蛋白分离物 (SPI) 和素 (PHL) 的相互作用,增强了蛋白质的结构和功能. 这一过程稳定了素的结合,为营养递送系统提供了洞察力.

科学领域:

食品化学食品化学
蛋白质科学蛋白质科学
生物化学生物化学

背景情况:

大豆蛋白分离物 (SPI) 是一种有价值的蛋白质来源.
素 (PHL) 是一种具有潜在健康益处的生物活性黄.
了解蛋白质和生物活性化合物之间的相互作用对于食品应用至关重要.

研究的目的:

为了研究梅拉德反应对SPI-PHL相互作用的影响.
评估对SPI功能性质的影响.
探索改善营养递送系统的潜力.

主要方法:

二甲基硫酸盐-多烯胺凝电泳 (SDS-PAGE) 用于移植分析.
光谱学用于研究复杂的形成和蛋白质结构.
分子对接以预测结合相互作用.
福里埃变换红外光谱法 (FTIR) 用于结构变化.

主要成果:

通过SDS-PAGE证实了藻酸盐 (SA) 在SPI上成功移植.
梅拉德反应在SPI-PHL复合体中诱导了更紧的三级结构,这是光所证明的.
通过分子对接观察到PHL与SPI结合的增强稳定性.
蛋白质展开 (α-螺旋/β-片减少,不规则卷曲增加) 改善了SPI的功能性质.

结论:

梅拉德反应显著增强了SPI-PHL相互作用和稳定性.
由梅拉德反应诱导的蛋白质展开改善了SPI的功能性质.
这些发现支持在开发先进的营养递送系统时使用梅拉德反应产物.

关键词:

互动互动互动互动罗氨酸是一种素.这是一种大豆蛋白分离物.

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