Development of nanocomposite chitosan films with antimicrobial activity from agave bagasse and shrimp shells
In this study, the nanocomposite chitosan films with antimicrobial activity from agave bagasse and shrimp shells were developed. Chitosan was successfully extracted from shrimp shells waste and cellulose nanofibers were obtained from bagasse agave. To improve the antimicrobial activity, different...
| Autores Principales: | Montes de Oca-Vásquez, Gabriela, ESQUIVEL, MARIANELLY, Jose-Roberto, Vega-Baudrit, Jiménez-Villalta, Guillermo, Romero-Arellano, Víctor Hugo, Sulbaran Rangel, Belkis |
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| Formato: | Artículo |
| Idioma: | Inglés |
| Publicado: |
Elsevier (Países Bajos)
2024
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| Materias: | |
| Acceso en línea: |
http://hdl.handle.net/11056/27863 https://doi.org/10.1016/j.jafr.2023.100759 |
| Sumario: |
In this study, the nanocomposite chitosan films with antimicrobial activity from agave bagasse and shrimp shells
were developed. Chitosan was successfully extracted from shrimp shells waste and cellulose nanofibers were
obtained from bagasse agave. To improve the antimicrobial activity, different silver nanoparticle concentrations
(2.5, 5, and 10% v/v) were added in the formulation. The films were prepared using the solvent casting technique
and the film samples were characterized by Fourier transform infrared spectroscopy, thermogravimetric
analysis, and scanning electron microscopy. The functional properties were also evaluated, including transparency,
antibacterial activity (against Escherichia coli), water-solubility, swelling, and mechanical properties.
The moisture content and water solubility decreased when the silver nanoparticles and nanofiber were added to
the films. An increase in strength and modulus was determined when the nanofibers were added to the film. and
with the addition of silver nanoparticles a decrease of the mechanical properties proportional to the nanoparticle
content was observed. Therefore, there was an increase in the mechanical properties of chitin films with the
incorporation of nanofibers and the addition of 2.5% and 5% of silver nanoparticles. Chitosan/nanofiber-based
films displayed a total antibacterial activity against E.coli compared to chitosan-based films, with a synergistic
effect between chitosan and cellulose nanofibers. This work highlights the potential of chitosan films reinforced
with nanofibers and silver nanoparticles to act as green alternative for food preservation and packaging. |
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