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Article

Design and Development of Enhanced Antimicrobial Breathable Biodegradable Polymeric Films for Food Packaging Applications

1
Department of Chemistry, School of Science and Engineering, The American University in Cairo, Cairo 11835, Egypt
2
Department of Chemistry, Helwan University, Cairo 11795, Egypt
*
Author to whom correspondence should be addressed.
Academic Editor: Damien Quémener
Polymers 2021, 13(20), 3527; https://doi.org/10.3390/polym13203527
Received: 31 August 2021 / Revised: 24 September 2021 / Accepted: 28 September 2021 / Published: 14 October 2021
(This article belongs to the Special Issue Polymeric Membranes for Advanced Applications)
The principle of breathable food packaging is to provide the optimal number of pores to transfer a sufficient amount of fresh air into the packaging headspace. In this work, antimicrobial microporous eco-friendly polymeric membranes were developed for food packaging. Polylactic acid (PLA) and polycaprolactone (PCL) were chosen as the main packaging polymers for their biodegradability. To develop the microporous films, sodium chloride (NaCl) and polyethylene oxide (PEO) were used as porogenic agents and the membranes were prepared using solvent-casting techniques. The results showed that films with of 50% NaCl and 10% PEO by mass achieved the highest air permeability and oxygen transmission rate (O2TR) with PLA. Meanwhile, blends of 20% PLA and 80% PCL by mass showed the highest air permeability and O2TR at 100% NaCl composition. The microporous membranes were also coated with cinnamaldehyde, a natural antimicrobial ingredient, to avoid the transportation of pathogens through the membranes into the packaged foods. In vitro analysis showed that the biodegradable membranes were not only environmentally friendly but also allowed for maximum food protection through the transportation of sterile fresh air, making them ideal for food packaging applications. View Full-Text
Keywords: micro-perforated food packaging; antimicrobial food packaging; sodium chloride nanocrystals; cinnamaldehyde; biodegradable polymers micro-perforated food packaging; antimicrobial food packaging; sodium chloride nanocrystals; cinnamaldehyde; biodegradable polymers
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MDPI and ACS Style

Abd Al-Ghani, M.M.; Azzam, R.A.; Madkour, T.M. Design and Development of Enhanced Antimicrobial Breathable Biodegradable Polymeric Films for Food Packaging Applications. Polymers 2021, 13, 3527. https://doi.org/10.3390/polym13203527

AMA Style

Abd Al-Ghani MM, Azzam RA, Madkour TM. Design and Development of Enhanced Antimicrobial Breathable Biodegradable Polymeric Films for Food Packaging Applications. Polymers. 2021; 13(20):3527. https://doi.org/10.3390/polym13203527

Chicago/Turabian Style

Abd Al-Ghani, Mona M., Rasha A. Azzam, and Tarek M. Madkour 2021. "Design and Development of Enhanced Antimicrobial Breathable Biodegradable Polymeric Films for Food Packaging Applications" Polymers 13, no. 20: 3527. https://doi.org/10.3390/polym13203527

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