Preparation and Characterization of Novel Food Packaging Materials Based on Biodegradable PCL/Ag-Kaolinite Nanocomposites with Controlled Release Properties

Recent advances in food packaging materials largely rely on nanotechnology structuring. Owing to several unique properties of nanostructures that are lacking in their bulk forms, the incorporation of nanostructures into packaging materials has greatly improved the performance and enriched the functionalities of these materials. This review focuses on the functions and applications of widely studied nanostructures for developing novel food packaging materials. Nanostructures that offer antimicrobial activity, enhance mechanical and barrier properties, and monitor food product freshness are discussed and compared. Furthermore, the safety and potential toxicity of nanostructures in food products are evaluated by summarizing the migration activity of nanostructures to different food systems and discussing the metabolism of nanostructures at the cellular level and in animal models.

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Technological challenges of addressing new and more complex migrating products from novel food packaging materials

Food Additives & Contaminants Part A ◽

10.1080/02652030902995277 ◽

2009 ◽

Vol 26 (12) ◽

pp. 1534-1546 ◽

Cited By ~ 25

Author(s):

Ian C. Munro ◽

Lois A. Haighton ◽

Barry S. Lynch ◽

Shahrzad Tafazoli

Keyword(s):

Food Packaging ◽

Packaging Materials ◽

Novel Food ◽

Food Packaging Materials

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Migration and Degradation in Composting Environment of Active Polylactic Acid Bilayer Nanocomposites Films: Combined Role of Umbelliferone, Lignin and Cellulose Nanostructures

Polymers ◽

10.3390/polym13020282 ◽

2021 ◽

Vol 13 (2) ◽

pp. 282

Author(s):

Magdalena L. Iglesias-Montes ◽

Francesca Luzi ◽

Franco Dominici ◽

Luigi Torre ◽

Liliana B. Manfredi ◽

...

Keyword(s):

Food Packaging ◽

Functional Characterization ◽

Poly Lactic Acid ◽

Packaging Materials ◽

Food Packaging Materials ◽

Bilayer Films ◽

Active Food Packaging ◽

Migration Limit

This study was dedicated to the functional characterization of innovative poly(lactic acid) (PLA)-based bilayer films containing lignocellulosic nanostructures (cellulose nanocrystals (CNCs) or lignin nanoparticles (LNPs)) and umbelliferone (UMB) as active ingredients (AIs), prepared to be used as active food packaging. Materials proved to have active properties associated with the antioxidant action of UMB and LNPs, as the combination of both ingredients in the bilayer formulations produced a positive synergic effect inducing the highest antioxidant capacity. The results of overall migration for the PLA bilayer systems combining CNCs or LNPs and UMB revealed that none of these samples exceeded the overall migration limit required by the current normative for food packaging materials in both non-polar and polar simulants. Finally, all the hydrophobic monolayer and bilayer films were completely disintegrated in composting conditions in less than 18 days of incubation, providing a good insight on the potential use of these materials for application as active and compostable food packaging.

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