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Article

Effect of Ultrasound Treatment on Barrier Changes of Polymers before and after Exposure to Food Simulants

1
Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
2
Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities and College of Health and Biomedicine, Victoria University, Melbourne, VIC 8001, Australia
3
Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
*
Author to whom correspondence should be addressed.
Academic Editor: Alexey Iordanskii
Polymers 2022, 14(5), 990; https://doi.org/10.3390/polym14050990
Received: 25 January 2022 / Revised: 18 February 2022 / Accepted: 25 February 2022 / Published: 28 February 2022
(This article belongs to the Special Issue Polymers in Food Sciences)
In this study, we investigated the impact of ultrasound treatment on barrier properties of linear low-density polyethylene (LLDPE) and acrylic/poly(vinylidene chloride) polypropylene (PPAcPVDC)-coated pouches intended for food packaging before and after exposure to food simulants. Packaging pouches were filled with two food simulants, namely ethanol (10% (v/v)) and acetic acid (3% (w/v)), in order to simulate food–packaging interaction and possible compound migration from packaging materials. Samples were subjected to an ultrasound water bath treatment for 5 min, 15 min, and 30 min at 60 °C (±2 °C) and with an amplitude of 100% as an equivalent to the heat-treatment conditions combined with an ultrasound effect. Furthermore, the effect of temperature on the polymer barrier (water vapour and oxygen permeability) properties was tested at 20 °C, 40 °C, and 60 °C. Results showed that PPAcPVDC possessed better properties of water vapour permeability and oxygen permeability properties to LLDPE. Statistical analyses showed a significant (p < 0.001) impact of ultrasound treatment on the overall migration value, regardless of the food simulant used. View Full-Text
Keywords: linear low-density polyethylene; coated polypropylene; ultrasound; barrier properties; food–packaging interaction; overall migration linear low-density polyethylene; coated polypropylene; ultrasound; barrier properties; food–packaging interaction; overall migration
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MDPI and ACS Style

Ščetar, M.; Daniloski, D.; Tinjić, M.; Kurek, M.; Galić, K. Effect of Ultrasound Treatment on Barrier Changes of Polymers before and after Exposure to Food Simulants. Polymers 2022, 14, 990. https://doi.org/10.3390/polym14050990

AMA Style

Ščetar M, Daniloski D, Tinjić M, Kurek M, Galić K. Effect of Ultrasound Treatment on Barrier Changes of Polymers before and after Exposure to Food Simulants. Polymers. 2022; 14(5):990. https://doi.org/10.3390/polym14050990

Chicago/Turabian Style

Ščetar, Mario, Davor Daniloski, Mirela Tinjić, Mia Kurek, and Kata Galić. 2022. "Effect of Ultrasound Treatment on Barrier Changes of Polymers before and after Exposure to Food Simulants" Polymers 14, no. 5: 990. https://doi.org/10.3390/polym14050990

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