食品科学 ›› 2020, Vol. 41 ›› Issue (16): 68-76.doi: 10.7506/spkx1002-6630-20190402-024

• 食品化学 • 上一篇    

火龙果茎植物甾醇对姜黄素纳米脂质体稳定性以及释放性能的影响

黎雨浩,李照莹,周伟,付调坤,邹立强,彭盛峰,成策,刘伟   

  1. (1.南昌大学食品学院,食品科学与技术国家重点实验室,江西 南昌 330047;2.中国热带农业科学院农产品加工研究所,农业农村部热带作物产品加工重点实验室,广东 湛江 524001)
  • 发布日期:2020-08-19
  • 基金资助:
    海南省自然科学基金项目(318QN286);国家自然科学基金地区科学基金项目(21766018); 中国热带农业科学院基本科研业务费专项(1630122017013);广东省自然科学基金项目(2017A030307013)

Effects of Pitaya Stem Phytosterol on Stability and Release Properties of Curcumin Nanoliposomes

LI Yuhao, LI Zhaoying, ZHOU Wei, FU Tiaokun, ZOU Liqiang, PENG Shengfeng, CHENG Ce, LIU Wei   

  1. (1. State Key Laboratory of Food Science and Technology, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; 2. Key Laboratory of Tropical Crop Products Processing, Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China)
  • Published:2020-08-19

摘要: 研究火龙果茎植物甾醇(pitaya stem phytosterol,PSP)对姜黄素纳米脂质体(curcumin-nanoliposomes,NLs-Cur)的稳定性、膜性质以及体外释放特性的影响。通过粒径、多分散系数(polydispersity index,PDI)、Zeta电位和不稳定指数评价加入PSP的NLs-Cur在不同环境中的稳定性。随着PSP含量的增加,植物甾醇姜黄素纳米脂质体(curcumin-phytosterol nanoliposomes,PNLs-Cur)的平均粒径以及PDI显著增大。稳定性实验表明,PNLs-Cur相比NLs-Cur在同等的pH值、离子条件下稳定性更强,且在80 ℃条件下放置1 h,PNLs-Cur较NLs-Cur的姜黄素保留率更高,PNLs-Cur和NLs-Cur的姜黄素保留率分别为61.25%和57.48%。体外释放结果表明,72 h内,PNLs-Cur与NLs-Cur的累计释放率分别为50.08%和63.64%,PSP的存在使得姜黄素在纳米脂质体中释放更加缓慢。

关键词: 姜黄素;火龙果茎;植物甾醇;纳米脂质体

Abstract: This study investigated the effect of pitaya stem phytosterol (PSP) on stability, membrane properties and in vitro release property of curcumin nanoliposomes (NLs-Cur). The stability of PSP-incorporated Cur-NLs was evaluated by particle size, polydispersity index (PDI), zeta potential and instability index in different environments. The results showed that the average particle size and PDI of curcumin-phytosterol nanoliposomes (PNLs-Cur) increased significantly with increasing content of PSP. Stability experiments showed that PNLs-Cur was more stable than NLs-Cur was under the same pH and ion conditions, and PNLs-Cur had higher retention rate of curcumin than NLs-Cur did at 80 ℃ for an hour (61.25% versus 57.48%). In addition, the cumulative release rates of PNLs-Cur and NLs-Cur were 50.08% and 63.64% within 72 h, respectively. In vitro release experiments indicated that the incorporation of PSP led to slower release of curcumin encapsulated in the nanoliposomes

Key words: curcumin; pitaya stem; phytosterol; nanoliposomes

中图分类号: