Scientific Reports (Jun 2022)

Effect of polyvinyl alcohol and carboxymethylcellulose on the technological properties of fish gelatin films

  • Gleyca de Jesus Costa Fernandes,
  • Pedro Henrique Campelo,
  • Jayne de Abreu Figueiredo,
  • Hugo Junior Barbosa de Souza,
  • Maria Regina Sarkis Peixoto Joele,
  • Maria Irene Yoshida,
  • Lúcia de Fátima Henriques Lourenço

DOI
https://doi.org/10.1038/s41598-022-14258-y
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 12

Abstract

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Abstract The objective of this work was to develop biodegradable films by mixing gelatin/carboxymethylcellulose (FG/CMC) and gelatin/polyvinyl alcohol (FG/PVOH) and to evaluate the effect of adding these polymers on the properties of fish gelatin films. The films FG/CMC and FG/PVOH were produced in the proportions 90/10, 80/20 and 70/30 and characterized their physical, chemical and functional properties. The addition of CMC and PVOH improved the mechanical strength, barrier property and water solubility of gelatin films. FG/CMC films showed greater tensile strength and greater solubility than FG/PVOH. The maximum concentration of CMC promoted the highest mechanical resistance, while the highest PVOH content produced the film with the lowest solubility. The proposed mixing systems proved to be adequate to improve the properties of fish gelatin films, with potential for application in the packaging sector.