Desenvolvimento e caracterizacao de filmes de base celulosica incorporados com aldeido cinamico/Development and characterization of cellulose-based films with cinnamaldehyde incorporated

• Published in: Revista brasileira de tecnologia de alimentos Vol. 17; no. 1; p. 33
• Main Authors: Lopes, Franceline Aparecida, Soares, Nilda de Fatima Ferreira, Lopes, Cristiane de Cassia Pires, da Silva, Washington Azevedo
• Format: Journal Article
• Language: English
• Published: 01.01.2014
• Subjects: Aspergillus flavus; Escherichia coli; Fusarium oxysporum; Listeria monocytogenes; Staphylococcus aureus
• ISSN: 1516-7275

Antimicrobial films were developed with the incorporation of cinnamaldehyde at 5, 10 and 20% v/w. The growth inhibition activities of the films were evaluated for the bacteria Staphylococcus aureus, Listeria monocytogenes and Escherichia coli and for the fungi Fusarium oxysporum and Aspergillus flavus. Their mechanical properties were also evaluated. For the bacteria, with the exception of E. coli, the inhibition zones increased with the increase in concentration of cinnamaldehyde in the film. Regardless of the cinnamaldehyde concentration the average film thickness was 32.47 mu m and the mean relative deformation at maximum film load was 2.05% at 8 degree C and 1.72% at 25 degree C. The film containing 10% of cinnamaldehyde showed a maximum load of 108.26 N, significantly lower (p<0.05) than the films with 0% and 5%.The results showed the potential of the films with cinnamaldehyde incorporated as alternative active packaging for the control of the growth of microorganisms in foods.