Piper regnellii extract biopolymer‐based microparticles: production,characterization and antifungal activity |
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| Authors: | L.Z.S. Brambilla E.H. Endo D.A.G. Cortez M.M.S. Lima B.P. Dias Filho |
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| Affiliation: | 1. Post Graduate Program in Pharmaceutical Science, Universidade Estadual de Maringá, Paraná, Brazil;2. Department of Pharmacy, Universidade Estadual de Maringá, Paraná, Brazil |
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| Abstract: | Aims This study aims to improve characteristics of Piper regnellii extract to make it applicable in formulations to treat dermatophytosis, also known as ringworm. Methods and Results Microparticles (MPs) were produced by spray drying with gelatin, alginate and chitosan as encapsulating agents; characterized by scanning electron microscopy, encapsulation efficiency, thermal analyses and X‐ray diffraction; and tested against Trichophyton rubrum by broth microdilution. Produced MPs had a mean diameter less than 2 μm, an increase in stability and release of the extract and good results for encapsulation efficiency, being 85·6% to gelatin MP, 71·3% to chitosan MP and 60·6% to alginate. MPs preserved the antifungal activity of P. regnellii extract T. rubrum. Conclusion Microencapsulation provided a significant improvement in the stability of the P. regnellii extract and better solubilization of chemical compounds, maintaining the antifungal effect against T. rubrum. Significance and Impact of the Study These results are useful for developing a formulation to treat fungal infections caused by dermatophyte species. |
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| Keywords: | antifungal dichloromethane extract microparticles
Piper regnellii
spray drying
Trichophyton rubrum
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