Next Article in Journal
A Novel Technique for the Deposition of Bismuth Tungstate onto Titania Nanoparticulates for Enhancing the Visible Light Photocatalytic Activity
Previous Article in Journal
Preparation and Grafting Functionalization of Self-Assembled Chitin Nanofiber Film
Open AccessArticle

Effect of Activated Plastic Films on Inactivation of Foodborne Pathogens

ANDALTEC Centro Tecnológico del Plástico, Martos, Jaén 23600, Spain
Department of Health Sciences, University of Jaen, Jaén 23071, Spain
Author to whom correspondence should be addressed.
Academic Editor: S. D. Worley
Coatings 2016, 6(3), 28;
Received: 29 June 2016 / Revised: 11 July 2016 / Accepted: 15 July 2016 / Published: 19 July 2016
In the present study, low density polyethylene films were activated by co-extrusion with zinc oxide, zinc acetate or potassium sorbate. Films were also surface-activated with tyrosol singly or in combination with lactic acid or p-hydroxybenzoic acid. Activated films were tested on Listeria monocytogenes, Staphylococcus aureus, Escherichia coli, Salmonella enterica and Pseudomonas fluorescens. The combinations showing greatest inhibition zones and broadest inhibitory spectrum were the films activated with tyrosol plus p-hydroxybenzoic acid. A small delay in growth of Listeria innocua was observed on seabream packed in ZnO-activated films during refrigerated storage for 7 days. When films activated with 2.5% tyrosol or with 1.5% tyrosol plus 0.5 p-hydroxybenzoic acid were used for vacuum packaging of smoked salmon and smoked tuna challenged with cocktails of S. enterica and L. monocytogenes strains, the combination of tyrosol and p-hydroxybenzoic acid improved inactivation of both pathogens during chill storage compared to films singly activated with tyrosol. The best results were obtained in smoked salmon, since no viable pathogens were detected after 7 days of chill storage for the activated film. Results from the study highlight the potential of plastic films surface-activated with tyrosol and p-hydroxybenzoic acid in the control of foodborne pathogens in smoked seafood. View Full-Text
Keywords: active packaging; zinc oxide; tyrosol; seafood; foodborne pathogens active packaging; zinc oxide; tyrosol; seafood; foodborne pathogens
MDPI and ACS Style

Soriano Cuadrado, B.; Martínez Viedma, P.; López Aguayo, M.C.; Ortega Blazquez, I.; Grande Burgos, M.J.; Pérez Pulido, R.; Gálvez, A.; Lucas López, R. Effect of Activated Plastic Films on Inactivation of Foodborne Pathogens. Coatings 2016, 6, 28.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

Back to TopTop