Development of whey protein isolate/chitosan/microcrystalline cellulose‐based bilayer films using surface‐pretreated polyethylene terephthalate substrate

Hu, Yue; Wang, Zichun; Zhang, Xia; Xue, Bin; Li, Xue; Ren, Difeng

doi:10.1111/jfpe.13600

Cited by 8 publications

(2 citation statements)

References 46 publications

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“…Chitin can be obtained from shrimp shells, crabs, insect exoskeletons, crustacean shells, and fungi cell walls (de Oliveira, Ugucioni, & Borges, 2021;de Oliveira, Ugucioni, da Rocha, Santos, & Borges, 2019;Díaz-Montes, Yáñez-Fernández, & Castro-Muñoz, 2021;Sharma et al, 2021). CS possesses excellent film-forming ability (Cai, Wang, & Cao, 2020;Hu et al, 2021). Whereas CS-based films are weak when compared to those made with synthetic polymers, the incorporation of nanoscale fillers into the CS polymer matrix may be an alternative to improve the properties of these materials (Hosseinzadeh, Partovi, Talebi, & Babaei, 2020;Pandey & Mishra, 2011).…”

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confidence: 99%

Chitosan‐nanocomposites as a food active packaging: Effect of addition of tocopherol and modified montmorillonite

Dias

Azevedo

Ferreira

et al. 2021

J Food Process Engineering

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The development of natural biodegradable polymers to partially or totally replace synthetic polymers may be advantageous in food packaging, mainly when are associated with additional features such as active packaging. This article aimed to evaluate the effect of tocopherol concentration (0, 5, 10, and 20%) and modified montmorillonite clay (MMT15A) nanoparticles (0 and 1%) on the properties of chitosan (CS) films. The addition of tocopherol provided antioxidant activity and improved the thermal stability of the films, and acted as a plasticizer, decreasing the tensile strength, elastic modulus, and glass transition temperature of the films. Although MMT15A and tocopherol did not change the water vapor permeability, an improvement of the mechanical strength and lower equilibrium moisture content was observed when compared to the treatment made with CS alone. Both MMT15A and tocopherol allowed the production of bio‐nanocomposites with thermal, morphological, mechanical, and water‐resistant properties to be used as an antioxidant in packaging materials. Practical Applications The films containing both montmorillonite (MMT15A) and tocopherol presented an improved mechanical strength, thermal stability, and antioxidant activity when compared to the films containing the only tocopherol. Therefore, it was possible to develop antioxidant chitosan films with improved properties using up to 20% tocopherol and MMT15A. At this tocopherol and MMT 15A concentrations, the films may also be used to nutritionally enrich food, adding value to the package and the conditioned product. Furthermore, the films can also be considered edible films with combined properties.

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confidence: 99%

Chitosan‐nanocomposites as a food active packaging: Effect of addition of tocopherol and modified montmorillonite

Dias

Azevedo

Ferreira

et al. 2021

J Food Process Engineering

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“…Chitosan is a natural polymer obtained by the deacetylation of chitin, present in shrimp, crab, and insect shells. It is a non‐toxic, low‐cost, biodegradable material, and by virtue of these properties have been widely used in the production of packaging for the conservation of the quality of a variety of foods (Cai et al., 2020; de Oliveira et al., 2019, 2021; Hu et al., 2021).…”

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confidence: 99%

Release of papain incorporated in chitosan films reinforced with cellulose nanofibers

Santos

Cabral

Oliveira

et al. 2021

Food Processing Preservation

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This research presents an active biodegradable packaging, where papain was incorporated into chitosan films reinforced with cellulose nanofibers (CNF). The objective of this study was to evaluate the properties of chitosan‐film and CNF (0%, 4%, and 8%, w/w) incorporated with papain (0%, 2%, 6%, and 10%, w/w) and their release in the aqueous medium. Films were characterized by thickness, scanning electron microscopy, UV‐Vis light transmission, X‐ray diffraction, proteolytic activity, and kinetics of papain release. The papain impaired the dispersion of the CNF in the polymer matrix and increase crystallinity, however, the films show good transparency. The proteolytic activity of the films increased according to the concentration of papain. The CNF acted to control the release of papain. Films made with 2% papain and 4% CNF presented the lowest diffusion coefficient of the papain and may be used in packaging where the slow release of the active compound is required. Novelty impact statement This research presents an active biodegradable packaging, where papain was incorporated into chitosan films reinforced with cellulose nanofibers (CNF). The films developed showed good transparency and both the addition of CNF and papain resulted in increased crystallinity of chitosan films. The films with CNF presented the lowest diffusion coefficient of the papain and may be used in packaging where the slow release of the active compound is required.

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Preparation and Characterization of Improved Barrier Beverage Packaging Bottle and Its Inhibitory Effect on Dissolved Oxygen Content of Chestnut Rose Beverage

Wang,

Zeng,

Yin

et al. 2024

Packag Technol Sci

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Food packaging plays a crucial role in product storage, transportation and distribution. This study is dedicated to the development of high barrier blends for food packaging through the melt blending of polyethylene terephthalate (PET) and polyethylene 2,6‐naphthalate (PEN). The blends underwent comprehensive characterization involving chromaticity analysis, DSC, FTIR and XRD. Results indicated that the blend comprising 30 wt% PEN and 70 wt% PET exhibited superior structural properties, making it suitable for the production of beverage packing bottles. To evaluate the bottle properties, SEM, AFM, TG analysis and permeability testing were conducted. Comparatively, the barriers to O2, CO2, and water vapour of PEN/PET bottles were 3.52‐fold, 7.36‐fold and 2.25‐fold higher than PET bottles, and the mechanical properties and UV blocking properties have also improved. The PEN/PET bottles exhibited good thermal stability, with thermal shrinkage temperature and initial decomposition temperature at 87.5°C and 254°C, significantly higher than PET bottles (p < 0.05). Interestingly, the thermal shrinkage rate of PEN/PET bottles was measured at 87.5%, notably lower than that of PET bottles at 90.9%, indicating that PEN/PET bottles had good thermal stability. Additionally, beverage stored in PEN/PET bottles demonstrated lower dissolved oxygen content, suggesting promising applications for PEN/PET bottles in beverage packaging.

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Development of whey protein isolate/chitosan/microcrystalline cellulose‐based bilayer films using surface‐pretreated polyethylene terephthalate substrate

Cited by 8 publications

References 46 publications

Chitosan‐nanocomposites as a food active packaging: Effect of addition of tocopherol and modified montmorillonite

Chitosan‐nanocomposites as a food active packaging: Effect of addition of tocopherol and modified montmorillonite

Release of papain incorporated in chitosan films reinforced with cellulose nanofibers

Preparation and Characterization of Improved Barrier Beverage Packaging Bottle and Its Inhibitory Effect on Dissolved Oxygen Content of Chestnut Rose Beverage

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