Development of TiO2 photocatalyzed EC/HTPB based oxygen scavenging mats by electrospinning method for packaging applications

Kordjazi, Zahra; Ajji, Abdellah

doi:10.1016/j.fpsl.2021.100801

Cited by 9 publications

(7 citation statements)

References 24 publications

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“…The lowest OTR values were obtained with the 10% EC film prepared in ethanol with the incorporation of TiO 2 . This may have been the result of oxygen absorption by TiO 2 , as reported elsewhere [18]. Since the absorption of oxygen is significantly higher than for pure EC films, the transmission rate is expected to be lower.…”

Section: Discussionmentioning

confidence: 66%

“…Nanoparticles have been widely used to improve performance of food packaging materials. TiO 2 plays a major role in novel food packaging materials since it has high photosensitivity [18], oxidizability, long-term stability, and, last but not least, it significantly improves the antibacterial performance of materials [19]. It has been approved by the American Food and Drug Administration for use in materials that come into contact with food, such as food packaging.…”

Section: Introductionmentioning

confidence: 99%

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Simple, One-Pot Method for Preparing Transparent Ethyl Cellulose Films with Good Mechanical Properties

et al. 2022

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In this research, ethyl cellulose films were prepared by a simple, easy, controlled one-pot method using either ethanol or ethyl lactate as solvents, the films being formed at 6 °C. Titanium dioxide nanoparticles were incorporated to improve the oxygen transmission and water vapour transmission rates of the obtained films. This method used no plasticizers, and flexible materials with good mechanical properties were obtained. The resulting solvent-free and transparent ethyl cellulose films exhibited good mechanical properties and unique free-shapable properties. The obtained materials had similar properties to those reported in the literature, where plasticizers were incorporated into ethyl cellulose films with an elastic modulus of 528 MPa. Contact angles showed the hydrophobic nature of all the prepared materials, with contact angles between 80 and 108°. Micrographs showed the smooth surfaces of the prepared samples and porous intersections with honeycomb-like structures. The oxygen and water vapor transmission rates were the lowest for the ethyl cellulose films prepared in ethyl lactate, these being 615 cm3·m−2·day−1 and 7.8 gm−2·day−1, respectively, showing that the films have promise for food packaging applications.

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Section: Discussionmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Simple, One-Pot Method for Preparing Transparent Ethyl Cellulose Films with Good Mechanical Properties

et al. 2022

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“…The oxygen absorption results are shown in Figure 1A. [ 28,29 ] Furthermore, the melt extrusion was used to prepare TiO 2 ‐catalyzed HTPB‐based oxygen scavenging compounds in LDPE and polylactic acid (PLA) matrices at different compositions. The final oxygen absorption for the cast extrusion films (the average thickness of 60 μm) was about an average of 27 cc/g for the films containing 13 wt.% HTPB in PLA, and 30 cc/g for the films containing 10 wt.% HTPB in LDPE, after 30 days at 5 wt.% of TiO 2 (to the weight of HTPB).…”

Section: Unsaturated Organic Scavengersmentioning

confidence: 99%

“…Oxygen absorption versus time for (A) hydroxyl‐terminated polybutadiene (HTPB) in ethyl cellulose (EC) matrix prepared by solution methods (electrospinning and cast), (B) HTPB in low‐density polyethylene (LDPE) and polylactic acid (PLA) matrices prepared by melt extrusion. [ 28–30 ] HTPB, hydroxyl‐terminated polybutadiene…”

Section: Unsaturated Organic Scavengersmentioning

confidence: 99%

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Oxygen scavenging systems for food packaging applications: A review

Kordjazi

Ajji

2022

Can J Chem Eng

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During the last decades, the food industry has seen several changes in packaging technology and applications because of new consumer demands and market trends. These drivers can be summarized as requirements for high quality, freshness, extended shelf‐life, and security of food products. Oxygen scavengers, as a type of active packaging, absorb the dissolved oxygen or the oxygen in the headspace to protect the oxygen‐sensitive food products against oxidative degradation. In this review, organic and inorganic oxygen scavengers such as iron, ascorbic acid and its derivatives, illumination‐activated scavengers, reducible organic compounds, and unsaturated hydrocarbon‐based scavengers, including polyunsaturated fatty acids and polybutadiene, have been thoroughly discussed, and the mechanism of action of each system is briefly explained. In addition, some of the issues associated with the applied traditional transition metal catalysts to accelerate the oxidation rate in oxygen scavenging systems are listed, and the results from a recent study directed towards addressing those concerns by applying TiO2 photocatalyst are presented.

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