Biofilms functionalized based on bioactives and nanoparticles with fungistatic and bacteriostatic properties for food packing uses

Lluberas Nuñez, Maria Gabriela - Batista, Diego - Zuñiga-Umaña, Juan Miguel - Montes de Oca-Vásquez, Gabriela - Lecot Calandria, Nicole Valerie - Vega-Baudrit, José Roberto - Lopretti, Mary Isabel

Resumen:

The objective of this work was to formulate PVA films with the addition of modified phenols, chitosan, silver, or copper nanoparticles with fungistatic and bacteriostatic activity. The films were characterized by Fourier transform infrared spectroscopy, thermogravimetry analysis, differential scanning calorimetry, and scanning electron microscopy. The bacteriostatic activity against Salmonella gallinarum and Lactobacillus acidophilus, and the fungistatic activity against Penicillium acidophilus were determined. The results indicated that the addition of phenols enhanced the effect on the stability of the chemical structure of the PVA film. PVA films with modified bioactives and nanoparticles inhibited the colonization of the microorganisms tested, indicating germicidal control.


Detalles Bibliográficos
2023
Food packaging films
Chitosan
PVA
Nanoparticles
Phenols extract
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/43277
Acceso abierto
Licencia Creative Commons Atribución (CC - By 4.0)