Effect of Chitosan and Aloe Vera Extract Concentrations on the Physicochemical Properties of Chitosan Biofilms

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

Yoshida, CMP (Autor) Outra; Pacheco, MS (Autor) Outra; de Moraes, MA (Autor) Outra; Lopes, PS (Autor) Outra; Severino, P (Autor) Outra; Souto, EB (Autor) Outra; da Silva, CF (Autor) Outra

Revista

Título: Polymers

Vol. 13

Página Final: 1187

Editora: MDPI

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00T-TJS

DOI: 10.3390/polym13081187

Abstract (EN): Chitosan films have been extensively studied as dressings in formulations for the treatment of chronic wounds. The incorporation of aloe vera (Aloe barbadensis Miller) into chitosan dressings could potentialize the healing process since aloe vera shows several pharmacological activities. This work aimed to evaluate the effect of aloe vera and chitosan concentrations on the physicochemical properties of the developed films. The films were obtained by casting technique and characterized with respect to their color parameters, morphology, barrier and mechanical properties, and thermal analysis. Results showed that the presence of aloe vera modified the films ' color parameters, changed barrier properties, increased fluid handling capacity (FHC), and decreased water-vapor permeability (WVP). The reduced elongation at break resulted in more rigid films. Aloe vera concentration did not significantly change film properties, but the presence of this gel increased the films' stability at temperatures below 200 degrees C, showing similar behavior as chitosan films above 400 degrees C. The results suggest a crosslinking/complexation between chitosan and aloe vera, which combine appropriate physicochemical properties for application as wound dressing materials.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12