Oxygen transfer in co‐extruded multilayer active films for food packaging

Maio, Luciano Di; Marra, Francesco; Bedane, Tesfaye Faye; Incarnato, Loredana; Saguy, Sam

doi:10.1002/aic.15844

Cited by 18 publications

(15 citation statements)

References 18 publications

(39 reference statements)

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“…Among them, low-and high-density polyethylene (LDPE and HDPE), ethylene-vinyl acetate (EVA), poly(lactic acid) films (PLA), poly(ethylene terephthalate) (PET) or polypropylene (PP) are commonly used as substrates in active packaging material. In particular, PET has been used in coatings and multilayer formulations for obtaining an oxygen barrier material [8][9][10][11], whereas PP has been used in anti-insect and AM packaging material [12,13].…”

Section: Introductionmentioning

confidence: 99%

Effect of supercritical CO2 and olive leaf extract on the structural, thermal and mechanical properties of an impregnated food packaging film

Cejudo-Bastante

Cran

Casas

et al. 2019

The Journal of Supercritical Fluids

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Poly(ethylene terephthalate)/polypropylene (PET/PP) films containing olive leaf extract (OLE) were obtained by supercritical solvent impregnation (SSI) in batch (BM) and semi-continuous (SM) modes.The study focused on the impact of pressure, temperature, CO2 flow and OLE on the properties of the impregnated films. Thermal analysis of non-impregnated samples revealed a decrease in the crystallinity of PP layer treated at 35 ºC and an increase in the Tg of PET treated at 55 ºC due to CO2 sorption. In impregnated samples, high pressures caused a decrease in the crystallinity of PP layer, whereas PET layer remained unaffected. Higher pressures favour impregnation in BM, whereas different trends were found for SM impregnations. Although the film properties were not compromised after impregnation, the CO2 stream used in SM slightly weakened the impregnated films. Overall, conditions of 400 bar and 35ºC in BM were favorable for producing highly antioxidant films with minor structural modifications.

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Section: Introductionmentioning

confidence: 99%

Effect of supercritical CO2 and olive leaf extract on the structural, thermal and mechanical properties of an impregnated food packaging film

Cejudo-Bastante

Cran

Casas

et al. 2019

The Journal of Supercritical Fluids

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“…All materials were selected according to the results of our previous studies on coextruded and active films, and particularly on polyester/oxygen scavenger systems [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] . The selected polymeric matrix is the film grade PET resin Cleartuf P60 (M&G Polimeri S.p.A., Patrica (FR), Italy), having intrinsic viscosity 0.58 dL/g.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Oxygen absorption data of multilayer oxygen scavenger-polyester films with different layouts

et al. 2018

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Oxygen absorption measurements in continuous regard active multilayer films with different layouts, all incorporating a PET/Oxygen scavenger (OS) layer, operating as active O2 barrier, inserted between two PET inert layers, acting as passive O2 barrier. The data set is related to “Transport properties of multilayer active PET films with different layers configuration” by Apicella et al. (2018) [1].A set of four multilayer films, with different relative thickness of the active and inert layers, was produced using a laboratory scale co-extrusion cast-film equipment and was analyzed in terms of oxygen scavenging performance. Single layer active and inert layers were also produced for comparison. The results have shown a longer exhaustion time for all the active multilayer films, respect to the active monolayer one. Moreover, at constant thickness of the active layer, the exhaustion time increases by increasing the thickness of the inert layers, whereas, at constant thickness of the inert layers, the residual oxygen concentration decreases by increasing the thickness of the active layer.

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“…Using mathematical models to simulate O 2 transport can help predict the performance of active packaging systems. [26][27][28][29] In addition, these models facilitate the systematic study of different materials and multilayer configurations by enabling accurate prediction and reducing product development time. Fickian diffusion is the most commonly used model to describe O 2 permeation through the polymeric layers.…”

Section: Introductionmentioning

confidence: 99%

Food packaging and its oxygen transfer models in active multilayer structures: A theoretical review

Batista

Wanzeller

Lim

et al. 2022

Journal of Plastic Film & Sheeting

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Many food products are sensitive to oxygen which can promote rancidity, aerobic microorganism growth, browning, vitamin degradation, flavor loss, and other undesirable reactions. Active packaging concepts have been successfully applied to delay these deteriorative phenomena. In particular, oxygen scavengers help limit O2 ingress into packaging thus extending product shelf-life and thereby reducing food waste. Besides oxygen barrier polymers, other composite materials have been developed to reduce the overall O2 permeability into the package by adding oxygen scavengers or barrier fillers into the packaging structures. Typical thermoplastic food packaging barrier properties are summarized, including commercially available ones, and reported in the patent literature. Furthermore, various mathematical models have been developed to predict the oxygen transport behavior in active packaging to simulate oxygen transport in polymeric and composite materials. Such models are helpful to provide a better understanding of the mass transport fundamentals involved and shorten product development cycle time and cost. This review provides an overview of various oxygen absorber systems used in active food packaging. It also summarizes the mathematical models that simulate oxygen transport and absorption in different polymer films. Finally, these models can be adapted for other polymers and O2 scavengers to simulate O2 transfer on active polymeric materials. Simulation tools help the fundamental understanding of the O2 transport behavior and facilitate to developing novel active packaging systems that extend food shelf-life and enhance their safety.

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Oxygen transfer in co‐extruded multilayer active films for food packaging

Cited by 18 publications

References 18 publications

Effect of supercritical CO2 and olive leaf extract on the structural, thermal and mechanical properties of an impregnated food packaging film

Effect of supercritical CO2 and olive leaf extract on the structural, thermal and mechanical properties of an impregnated food packaging film

Oxygen absorption data of multilayer oxygen scavenger-polyester films with different layouts

Food packaging and its oxygen transfer models in active multilayer structures: A theoretical review

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