食品科学 ›› 2026, Vol. 47 ›› Issue (16): 32-40.doi: 10.7506/spkx1002-6630-20260127-230

• 食品化学 • 上一篇    下一篇

5-二十一烷基间苯二酚/环糊精包合物的制备及结构表征

巩威威,孙瑞清,温洋洋,李洪岩,王静   

  1. (1.北京工商大学新材料与未来技术学院,北京 100048;2.北京工商大学食品与健康学院,北京 100048)
  • 出版日期:2026-08-25 发布日期:2026-09-03
  • 基金资助:
    国家自然科学基金面上项目(32472268)

Preparation and Structural Characterization of 5-Heneicosylresorcinol/Cyclodextrin Inclusion Complexes

GONG Weiwei, SUN Ruiqing, WEN Yangyang, LI Hongyan, WANG Jing   

  1. (1. School of Advanced Materials and Future Technology, Beijing Technology and Business University, Beijing 100048, China; 2. School of Food and Health, Beijing Technology and Business University, Beijing 100048, China)
  • Online:2026-08-25 Published:2026-09-03

摘要: 本研究采用饱和水溶液法,以α-、β-和γ-环糊精(cyclodextrin,CD)为主体,制备了5-二十一烷基间苯二酚(5-heneicosylresorcinol,AR21)/CD包合物。通过改变AR21与CD的物质的量比(1∶1、1∶2、1∶3、1∶4),系统研究了包合物的包合率和结构特征。结果表明,所有AR21/CD包合物均表现出良好的包合效果,包合率均在60%以上,其中AR21/α-CD物质的量比为1∶4时,包合率最高,达到(92.35±0.05)%。通过傅里叶变换红外光谱、X射线衍射、差示扫描量热法、核磁共振氢谱以及密度泛函理论计算对AR21/CD包合物及其物理混合物进行表征,结果显示包合物与物理混合物在结构上存在显著差异,证实了包合物的成功制备,且AR21/α-CD体系具有最优的稳定性。

关键词: 烷基间苯二酚;5-二十一烷基间苯二酚;环糊精;包合物

Abstract: In this study, inclusion complexes of 5-heneicosylresorcinol (AR21) with α-, β-, and γ-cyclodextrin (CD) were prepared using the saturated aqueous solution method. The effect of varying molar ratio of AR21 to CD (1:1, 1:2, 1:3, and 1:4) on the encapsulation efficiency and structural characteristics of inclusion complexes was systematically investigated. The results demonstrated that all AR21/CD complexes exhibited favorable encapsulation performance, with encapsulation efficiencies exceeding 60%. Notably, the AR21/α-CD complex at a 1:4 molar ratio achieved the highest encapsulation efficiency of (92.35 ± 0.05)%. Structural characterization using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), differential scanning calorimetry (DSC), 1H nuclear magnetic resonance (NMR), and density functional theory (DFT) calculations revealed significant structural differences between the inclusion complexes and their corresponding physical mixtures, confirming successful complex formation. Furthermore, the AR21/α-CD system demonstrated the best stability among all studied complexes.

Key words: alkylresorcinol; 5-heneicosylresorcinol; cyclodextrin; inclusion complexes

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