牛素的酶解水解增强了DPP-4的抑制:结构修饰和生物活性的识别
Ning An1, Jing Yang2, Yu Zhang1
1College of Food Science, Southwest University, Chongqing 400715, China.
Journal of dairy science
|November 27, 2024
概括
用Flavorzyme对水牛素的酶化水解增强了其结构,并显著增强了其迪佩基酶-4 (DPP-4) 抑制活性,从而导致潜在的抗糖尿病食品的开发.
科学领域:
- 生物化学和食品科学 生物化学和食品科学
- 酶学 是一种酶学.
- 营养保健品 营养保健品
背景情况:
- 双基化酶-4 (DPP-4) 降解了内激素,影响了血糖调节.
- 抑制DPP-4是控制葡萄糖平衡和糖尿病的关键策略.
- 雄牛乳酪蛋白是具有治疗功能的生物活性的潜在来源.
研究的目的:
- 为了研究酶解水解对水牛素结构的影响.
- 为了评估水解水牛素的DPP-4抑制活性.
- 为了确定负责DPP-4抑制的特定.
主要方法:
- 牛素用Flavorzyme进行了水解.
- 使用扫描电子显微镜,电泳分析和光谱学 (圆形二重化,光) 分析了结构变化.
- 评估了DPP-4抑制活性,并确定和描述了抑制性.
主要成果:
- 芳香酵素有效地化了水牛乳酪蛋白,在3小时内达到最大的水解 (20.05%).
- 水解导致素的二级和三级结构发生显著变化.
- 随着水解时间的增加,DPP-4抑制活性增加,3小时的水解物显示出强烈的抑制 (IC50 = 1.04 mg/mL).
- 鉴定出YPFPGPIPN是一种强大的DPP-4抑制剂 (IC50 = 0.88 mg/mL),并阐明了它与DPP-4活性部位的相互作用.
结论:
- 酶性水解将水牛素转化为强大的DPP-4抑制剂的来源.
- 鉴定到的酸YPFPGPIPN显示出治疗应用的巨大潜力.
- 这项研究为从水牛乳酪蛋白中开发功能性抗糖尿病食品提供了科学基础.
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