Mechanical and Barriers Properties of Chitosan Films with Hydrophilic and Hydrophobic Phytotherapics

Abstract:

Chitosan films have been used as dressings for healing burns. The physical and biological properties of these films can be modified by the addition of bioactive substances such as phytotherapics. This work used the casting - solvent evaporation technique for the preparation of chitosan film containing hydrophilic or hydrophobic phytotherapic. The barrier properties, mechanicals properties and microbial penetration were evaluated. The results showed that the films containing the hydrophobic herbal showed lower ability to move fluid and permeability to water vapor compared to the film containing the hydrophilic herbal. For the determination of microbial permeation, film were previously sterilized and were fixed in the mouth of glass vials containing sterile nutrient broth and left on the lab bench for a period of 10 days. Negative and positive controls were also conducted. The chitosan films do not allow the microbial penetration.

• Periodical: Materials Science Forum (Volume 805)
• Pages: 71-76
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.805.71
• Online since: September 2014
• Authors: Amanda Luiza Basílio Belisário*, Lívia de Siqueira Estevam, Henrique Selli Debone, Cristiana Maria Pedroso Yoshida, Patrícia Santos Lopes, Classius da Silva Ferreira
• Keywords: Chitosan, Dressing, Film, Phytotherapics

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