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A Tripeptide-Stabilized Nanoemulsion of Oleic Acid
Published on: February 27, 2019
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改善了用甲酸盐和PEG涂层对利科脂质体的稳定性和生物相容性
Yinglan Li1, Jianshuo Su1, Shufan Liu1
1Shandong Key Laboratory of Applied Technology for Protein and Peptide Drugs, Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China.
概括
使用甲和聚乙烯糖醇 (PEG) 的新型柳科脂质体显示出增强的稳定性和抗氧化活性. 这些表面修饰脂质体 (Lips-LYC/SC) 为功能性食品提供了一个有前途的输送系统,并改善了健康结果.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物材料科学 生物材料科学
- 营养保健品 营养保健品
背景情况:
- 利科是一种强大的抗氧化剂,具有较差的水溶性和稳定性,限制了其在功能性食品中的应用.
- 脂质体封装是一种提高水生物活性剂 (如利科) 的生物可用性和输送的策略.
- 脂质体的表面修饰可以进一步增强其物理化学特性和生物疗效.
研究的目的:
- 准备和表征新的表面修饰的用甲酸盐和聚乙烯甘醇 (PEG) 制备和表征的烯脂质体.
- 将这些修饰脂质体 (Lips-LYC/SC) 的物理化学特性和生物性能与其他配方进行比较.
- 评估Lips-LYC/SC作为功能性食品应用和健康益处中烯的输送平台的潜力.
主要方法:
- 层层地将甲酸盐和PEG组装到柳科脂质体上.
- 物理化学表征包括颗粒大小,稳定性,封装效率和烯泄漏分析.
- 光谱和热分析 (FT-IR,DSC,PXRD) 来确认辅助剂相互作用和烯结晶性降低.
- 在体外抗氧化剂测试 (DPPH,ROS清理) 和细胞毒性测试 (LO2,Caco-2细胞).
- 在高脂肪饮食 (HFD) 诱导的肝损伤模型中的体内评估.
主要成果:
- 与乳清蛋白分离物/PEG和PEG过的烯脂质体相比,Lips-LYC/SC显示了显著减少的颗粒大小和改善的稳定性.
- 在Lips-LYC/SC中,由于 kazeinate的修改,观察到更高的封装效率和最小的利科泄漏.
- 通过DSC,PXRD,FT-IR和光分析证实了辅助剂相互作用,改善了柳科的水溶性.
- 封装的利科显著增强了抗氧化活性和最小的细胞毒性.
- 在肝损伤模型中,Lips-LYC/SC有效改善了代谢障碍,氧化应激和肝毒性.
结论:
- 酸和PEG共同装饰的脂质体 (Lips-LYC/SC) 代表了烯的卓越输送系统.
- 这种配方增强了利科的稳定性,溶解性和抗氧化功效.
- Lips-LYC/SC显示了功能性食品应用和治疗干预措施的巨大潜力,特别是肝脏健康.
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