通过水解和金属离子协调调节蛋白质自我组合:对EGCG封装和受控释放的影响
Qian-Da Xu1, Qiang He2, Wei-Cai Zeng3
1Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China.
Food chemistry
|February 18, 2026
概括
一种新的介导策略增强了蛋白质载体中的EGCG稳定性. 这种方法提高了封装效率和受控释放,为开发功能性食品成分提供了一个有希望的方法.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物材料工程 生物材料工程
- 营养药物输送系统 营养药物输送系统
背景情况:
- 乙甲基酸盐 (EGCG) 是一种强大的抗氧化剂,在食品系统中稳定性有限.
- 基于蛋白质的载体正在探索EGCG的输送,但在加工和储存期间仍然存在稳定性问题.
- 开发强大的输送系统对于最大限度地提高EGCG的健康益处至关重要.
研究的目的:
- 开发一种介导的自我组装策略,以提高封装在蛋白质载体中的EGCG的稳定性和受控释放.
- 研究蛋白质水解度和环极素预封装对EGCG封装和稳定性的影响.
- 在模拟的加工和消化条件下评估开发系统的性能.
主要方法:
- 使用有限的蛋白质水解和环氧素预封装用于EGCG封装.
- 采用离子 (Zn2+) 来诱导蛋白质载体的自我组装.
- 评估了EGCG封装效率,性条件下的稳定性,以及模拟消化过程中的释放特征.
主要成果:
- 循环素预封装提高了EGCG封装效率,从68.69%提高到81.23%,降低了降解.
- 增加蛋白质水解度增强了Zn2+诱导的自我组装,产生更小,更均的颗粒.
- 以为媒介的自组装显著提高了EGCG的稳定性,在24小时的化潜伏后,达到75.1%的保留率.
- 观察到受控的EGCG释放,释放延迟到肠道阶段和46.53%的生物可访问性.
结论:
- 适度的蛋白质水解与金属诱导的自我组装相结合,是优化EGCG封装和稳定性的有效策略,以蛋白质为基础的输送系统.
- 开发的系统证明了对降解和受控释放的增强保护,提高了EGCG作为功能成分的潜力.
- 这种方法提供了一种可行的方法,用于创建稳定有效的营养药物输送系统,用于像EGCG这样的多.
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