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Encapsulation Mechanism of Oxyresveratrol by β-Cyclodextrin and Hydroxypropyl-β-Cyclodextrin and Computational Analysis

In this study, the encapsulation mechanism of oxyresveratrol and β-cyclodextrin (β-CD) and hydroxypropyl-β-cyclodextrin (HP-β-CD) was studied. As this research shows, oxyresveratrol and two cyclodextrins (CDs) were able to form inclusion complexes in a 1:1 stoichiometry. However, the interaction wit...

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Detalles Bibliográficos
Autores principales: He, Jianfei, Zheng, Zong-Ping, Zhu, Qin, Guo, Fengxian, Chen, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6150350/
https://www.ncbi.nlm.nih.gov/pubmed/29088059
http://dx.doi.org/10.3390/molecules22111801
Descripción
Sumario:In this study, the encapsulation mechanism of oxyresveratrol and β-cyclodextrin (β-CD) and hydroxypropyl-β-cyclodextrin (HP-β-CD) was studied. As this research shows, oxyresveratrol and two cyclodextrins (CDs) were able to form inclusion complexes in a 1:1 stoichiometry. However, the interaction with HP-β-CD was more efficient, showing up as higher encapsulation constant (K(F)) (35,864.72 ± 3415.89 M(−1)). The K(F) values exhibited a strong dependence on temperature and pH, which decreased as they increased. From the thermodynamic parameters (ΔH(0), ΔS(0), and ΔG(0)) of the oxyresveratrol loaded β-CD (oxyresveratrol-β-CD) and HP-β-CD (oxyresveratrol-HP-β-CD), it could be seen that the complexation process was spontaneous and exothermic, and the main driving forces between oxyrsveratrol and CDs were hydrogen bonding and van der waals force. Besides, molecular docking combined with (1)H-NMR were used to explain the most possible mode of interactions between oxyresveratrol and CDs.