Preparation and characterization of biodegradable cellulose acetate-based films with novel plasticizer obtained by polyethylene terephthalate glycolysis intended for active packaging

Erceg, Tamara; Vukić, Nevena; Šovljanski, Olja; Teofilović, Vesna; Porobić, Slavica; Baloš, Sebastian; Kojić, Sanja; Terek, Pal; Banjanin, Bojan; Rakić, Slavko

doi:10.1007/s10570-023-05240-6

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…39 This process produces useful monomers, with BHET being a particularly common one due to its ability to create various high-value products. 40–42 The usual approach involves using ethylene glycol, PET waste, and a catalyst (such as zinc acetate) for depolymerization. Studies have shown that PET glycolysis outperforms other processes in terms of economic and environmental performance.…”

Section: Pet To Monomers For Closed-loop Recyclingmentioning

confidence: 99%

Chemical recycling of PET to value-added products

Jia,

Gao,

Qin

et al. 2023

RSC Sustain.

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Section: Pet To Monomers For Closed-loop Recyclingmentioning

confidence: 99%

Chemical recycling of PET to value-added products

Jia,

Gao,

Qin

et al. 2023

RSC Sustain.

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“…Such strivings have resulted in notable progress in the development and utilization of biopolymer-based edible coatings. These coatings, formed as continuous films or coverings for food products, contribute to extending shelf life, maintaining nutritional quality, and enhancing sensory attributes of foods [3][4][5]. Proteins, polysaccharides, and lipids represent an environmentally friendly Polymers 2024, 16, 178 2 of 18 alternative to synthetic polymers, offering potential solutions for reducing food waste and improving sustainability in the food industry [1][2][3][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…These coatings, formed as continuous films or coverings for food products, contribute to extending shelf life, maintaining nutritional quality, and enhancing sensory attributes of foods [3][4][5]. Proteins, polysaccharides, and lipids represent an environmentally friendly Polymers 2024, 16, 178 2 of 18 alternative to synthetic polymers, offering potential solutions for reducing food waste and improving sustainability in the food industry [1][2][3][6][7][8][9][10][11]. A new generation of these coatings is designed to incorporate active ingredients such as colorants, flavors, enzymes, and antimicrobial compounds, enhancing the shelf life and nutritional value of packed products.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Properties of Pullulan-Based Active Edible Coatings Implemented for Improving Sliced Cheese Shelf Life

Erceg,

Šovljanski,

Tomić

et al. 2024

Polymers

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The development of active edible coatings with improved mechanical and barrier properties is a huge challenge. In this study, active edible coatings for sliced cheese have been developed using pullulan (Pull) in combination with two different biopolymers, chitosan (CS) and gelatine (Gel), and a combination of hydrolats as a source of active compounds with antimicrobial effects. In comparison to the monolayer coating, the bilayer coating system demonstrates improved barrier and mechanical properties. A preliminary assessment of the antimicrobial effect of lemongrass and curry plant hydrolats has revealed that both hydrolats exhibited antimicrobial activity against the targeted bacterium Staphylococcus aureus, albeit at different levels. The obtained results suggest that a mixture of 1.56% lemongrass and 12.5% curry plant hydrolats yielded a lower fractional inhibitory concentration (FIC) value. Bilayer coating systems (Pull/CS and Pull/Gel) with an incorporated mixture of hydrolats have demonstrated effectiveness in both cases: artificial contamination before application of the coating system and after application of the coating system. In both contamination scenarios, the coating systems consistently effectively limited bacterial proliferation, indicating the antimicrobial effect of the hydrolat mixture in the coating layers. In the case of artificial contamination before applying the coating system, both coatings demonstrated antimicrobial effectiveness, but the formulation with chitosan had a biocide effect, while the other, with gelatine, had only a bacteriostatic effect in a long-term setting. In the second case, both Pull/CS and Pull/Gel coatings demonstrated effectiveness in inhibiting bacterial growth regardless of the moment of contamination of the sample; the Pull/CS coating showed slightly better antimicrobial activity, achieving complete elimination of bacteria earlier compared with the Pull/Gel coating system.

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