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通过电子束辐射进行增强的脉冲蛋白-proanthocyanidin相互作用

Chen Chen¹, Tadesse Teferra¹, Joseph M Awika²

¹Department of Food Science & Technology, Texas A&M University, College Station, TX 77843, USA.

|September 18, 2025

概括

电子束辐射 (EBI) 改善了脉冲蛋白和益氨酸 (PA) 之间的相互作用. EBI增强了蛋白质的交叉链接,增加了分子量,并减少了对更好的食品应用的疏水性.

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:

众所周知,proanthocyanidins (PA) 可以增强脉动蛋白网络.
脉冲蛋白的球状结构限制了PA相互作用的有效性.
电子束辐射 (EBI) 可以修改蛋白质结构,以潜在地改善这些相互作用.

研究的目的:

调查EBI对大豆和脉蛋白PA相互作用的影响.
为了确定最佳的EBI剂量来增强蛋白质-PA交叉链接.
为了评估蛋白质溶解度,分子量和热稳定性的变化.

主要方法:

在存在PA (25 mg/g蛋白质) 的情况下,用EBI (0-10 kGy) 治疗大豆,豆,豆和豆蛋白.
分析了蛋白质溶解度,表面水性,分子量 (Mw) 和热稳定性.
测量了变化度,以确认交叉链接的程度.

主要成果:

2-5kGy的EBI显著增强了蛋白质-PA交联,使复杂的Mw增加了1.7-5.7倍.
在EBI处理后,表面疏水性降低了9-47%.
含有高普罗林的法巴蛋白显示出最广泛的PA交叉链接,形成更大的可溶性复合物.

结论:

EBI是一种有效的方法,可以改善脉冲蛋白中的proanthocyanidin-protein相互作用.
在EBI下,由于蛋白含量和结构灵活性,法巴蛋白显示出与PA的增强交联.
这种方法有可能改变食品系统中脉冲蛋白的功能.

关键词:

氨基酸是氨基酸中的一种.氨酸 (proline) 是一种氨酸.蛋白质交叉链接蛋白质交叉链接表面的疏水性是表面的疏水性.

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