Editor-in-Chief, Prof. Abiodun Falodun
Piperine is an alkaloid belonging to the Piperaceae family that has long been used in traditional medicine and has many pharmacological activities. However, piperine does not dissolve easily in aqueous media, resulting in low bioavailability. This study aims to prepare solid dispersions of piperine-HPMC 2910 in order to increase its solubility and dissolution rate. Spray drying was used to prepare solid dispersions in three formulations, with ratios of piperine:HPMC 2910 of 1:1, 1:2, and 2:1 (w/w). The samples were characterized by their solid-state properties using Powder X-ray Diffraction (PXRD), Differential Scanning Calorimetry (DSC), Fourier Transform Infrared (FTIR) Spectroscopy, and Scanning Electron Microscope (SEM). Solubility test and dissolution rate were conducted in aqueous medium. The results of the characterization showed a decrease in the intensity of the diffraction peak in the PXRD analysis; a decrease in melting point and a reduction in the endothermic peaks in the DSC analysis; no chemical interactions between piperine and the hydrophilic polymer (HPMC 2910) in the FTIR spectroscopy analysis; and significant changes in crystal morphology in the SEM analysis. The results of the solubility test showed that the highest increment in solubility was in the 1:1 formula, which increased solubility 7.296 times. The highest dissolution rate studies was also shown in the 1:1 formula, where dissolution rate increased 6.284 times. In summary, formation of piperine in solid dispersion with HPMC 2910 by spray drying technique significantly improved the solubility and dissolution rate of piperine.
ISSN: 2616-0684 (Print) ISSN: 2616-0692 (Online) DOI: 10.26538/tjnpr Index Copernicus Value (ICV) for 2017: 59.83 Scopus citescore 0.3 (2020)
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