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Journal of Chinese Pharmaceutical Sciences ›› 2023, Vol. 32 ›› Issue (3): 165-179.DOI: 10.5246/jcps.2023.03.014

• Original articles •     Next Articles

The preparation and characterization of sustained-release solid dispersion of resveratrol by hot-melt extrusion technology

Meiqi Gao1, Jiali Wu1, Wenjing Zhu1, Xiaotong Zhang1, Wenling Fan1,2,*()   

  1. 1 College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
    2 Jiangsu Provincial Technology Engineering Research Center of TCM Health Preservation, Nanjing 210023, China
  • Received:2022-10-09 Revised:2022-11-16 Accepted:2022-12-10 Online:2023-03-31 Published:2023-03-30
  • Contact: Wenling Fan

Abstract:

In the present study, we aimed to prepare, characterize, and evaluate the capability of solid dispersion (SD) for resveratrol (RES) with low solubility and high melting points. A sustained-release solid dispersion (SRSD) was prepared by hot melt extrusion (HME). The release of RES was controlled using a hydrophobic-hydrophilic polymer mixture (Eudragit RS and Poloxamer 188). The effects of formula and process parameters were systematically studied by univariate analysis. Then the Box-Behnken design (three factors, three levels) was used to optimize the preparation process of SRSD. Differential scanning calorimetry and X-ray diffraction were adopted to determine the physical state of SD. Scanning electron microscopy was used to observe its surface properties, and Fourier transform infrared spectroscopy was used to explore chemical interactions between excipients. Dissolution studies were carried out to investigate the kinetics and drug release time. In vitro studies showed that RES release followed the Weibull model kinetic. RES SRSD (RESRS P188-SRSD) was successfully prepared using HME, in which the mass ratio of the drug to the carrier was 1:3, the release regulator was P188, and the dosage was 10%. The stability of the preparation was good, and the dissolution was increased by 10 times.

Key words: Sustained-release solid dispersion, Resveratrol, Hot-melt extrusion, Box-Behnken design

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