Physicochemical, mechanical, optical, microstructural and antimicrobial properties of novel kefiran-carboxymethyl cellulose biocomposite films as influenced by copper oxide nanoparticles (CuONPs)

Hasheminya, Seyedeh‐Maryam; Mokarram, Reza Rezaei; Ghanbarzadeh, Babak; Hamishekar, Hamed; Kafil, Hossein Samadi

doi:10.1016/j.fpsl.2018.07.003

Cited by 83 publications

(45 citation statements)

References 36 publications

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“…a* and b* parameters increases as particles concentration increased. Similar effect was reported by Hasheminya et al [35] for nanobiocomposites based on kefiran-carboxymethyl cellulose and copper oxide nanoparticles. These results can be attributed to the inherent color of copper particles that gives TPS films a brownish hue.…”

Section: Films Characterizationsupporting

confidence: 89%

“…As it can be observed, copper particles induced a reduction on transparency values of TPS films. Several authors stressed that the decreased visible light transmission is attributed to opacity, hindrance of light transmission, and the scattering of light by particles as well as the distribution of particles on the polymer matrix [35][36][37]. Generally, opaque films limiting visible transmission are appropriate packaging polymers, which can reduce oxidation and discoloration induced by light [38].…”

Section: Films Characterizationmentioning

confidence: 99%

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Flexible thermoplastic starch films functionalized with copper particles for packaging of food products

López

Villanueva

Copello

et al. 2020

Functional Composite Mater

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Biodegradable films based on thermoplastic corn starch (TPS) and copper particles with antimicrobial capacity were developed. Copper nanoparticles (Cu) and silica coated copper microparticles (Si-Cu) in the range of 0.25 to 5% were used. Composite films were obtained by melt-mixing and subsequent thermo-compression. Particles distribution within TPS matrix and the presence of some pores and cracks, induced by Si-Cu particles, was evaluated by SEM. The presence of both fillers gave composite films a brown pigmentation and decreased their transparency; these effects were more pronounced at higher particles concentrations. Regarding mechanical properties, copper particles at 1 and 5% acted as reinforcing agents increasing the maximum tensile strength but their presence lead to a decrease in elongation at break, affecting films ductility. Composites inhibited the growth of Gram+ and Gram-bacteria, demonstrating their antimicrobial capacity. Copper effectively migrated to a simulant of aqueous foods and naked particles concentration in the simulant medium resulted higher than the minimum inhibitory concentration for bacteria. The characteristics and properties of developed composite films make them an interesting material for food primary packaging, mainly for meat fresh products.

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Section: Films Characterizationsupporting

confidence: 89%

Section: Films Characterizationmentioning

confidence: 99%

Flexible thermoplastic starch films functionalized with copper particles for packaging of food products

López

Villanueva

Copello

et al. 2020

Functional Composite Mater

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“…On the other hand, oleic acid had plasticizing effect on kefiran and significantly improved water vapor barrier but diminished mechanical strength [179]. Other approaches to improve mechanical, water vapor barrier and antimicrobial properties were blending with carboxymethyl cellulose or starch and synergetic effect by incorporation of different metal oxide nanoparticles, such as ZnO and CuO [124,180,181]. Rad, Sharifan and Asadi [182] investigated physico-chemical and antimicrobial properties of kefiran/waterborne polyurethane blend film incorporated with different concentrations (5, 10, 15 and 20% (v/v)) of Zataria multiflora and Rosmarinus officinalis essential oils intended for ostrich meat packaging.…”

Section: Kefiranmentioning

confidence: 99%

Prospect of Polysaccharide-Based Materials as Advanced Food Packaging

Nešić

Cabrera‐Barjas

Dimitrijević-Branković

et al. 2019

Molecules

187

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The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product's carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.

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“…Carboxymethyl cellulose (CMC), an ether-cellulose derivative, 6 is well-studied as an accessible carbohydrate with good film-forming, mechanical and transparency properties 5,7,8. The nano-structured cellulose (CNF),3,9 chitin, 10 copper oxide (CuO), 11 titanium dioxide (TiO 2 ), 12 silicon dioxide (SiO2), 13 silver (Ag)14 and some other nano-particles15 are used for improving antimicrobial or thermo-physical properties of polymers.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of a titanium dioxide (TiO2) nanoparticles reinforced bio-nanocomposite containing Miswak (Salvadora persica L.) extract – the antimicrobial, thermo-physical and barrier properties

Ahmadi¹,

Tanomand²,

Kazeminava³

et al. 2019

IJN

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Objective: The microbial, physico-chemical and optical corruptions threaten a variety of foods and drugs and consequently the human biological safety and its accessible resources. The humanbeing’s tendency towards bio-based materials and natural plant-extracts led to an increase in the usage of antimicrobial biocomposites based on medicinal herbs. Miswak ( Salvadora persica L.) extract (SPE) has been proved effective for its antimicrobial and other biological activities. Therefore, in this study, titanium dioxide (TiO 2 ) nanoparticles (TONP) and SPE were applied to fabricate antimicrobial carboxymethyl cellulose (Na-CMC) based bio-nanocomposites which would simultaneously promote some thermo-physical and barrier properties. Methods: CMC-neat film (C1), CMC/TONP-2% (C2) and CMC/TONP-2% with 150, 300 and 450 mg/mL SPE (SPE150, SPE30 and SPE450, respectively) were fabricated. The physical and mechanical properties; elemental mapping analysis (MAP), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA-DTG); fourier transform infrared (FTIR), energy-dispersive X-ray (EDX) and UV-vis spectroscopies were done to further validate the results. Results: Addition of TONP (2%) improved the blocking of UV light at 280 nm while SPE-containing nanocomposites completely blocked it. FTIR, XRD and SEM confirmed the formation of homogeneous films and high miscibility of applied materials. TONP led to an increase in Young’s modulus (YM) and stress at break (SB) while SPE decreased them and enhanced the elongation to break (EB) (flexibility) of the active nanocomposites. Compared to CMC-film, the thermo-gravimetric analysis (TGA-DTG) showed a higher thermal stability for CMC/TONP and CMC/TONP/SPE nanocomposites. The EDX spectroscopy and elemental mapping analysis (MAP) proved the existence and well-distributedness of Na, K, Cl, S, Ti, F and N elements in SPE-activated nanocomposites. The pure SPE and SPE-activated nanocomposites showed a favorable antimicrobial activity against both gram-positive ( Staphylococcus aureus ) and negative ( Escherichia coli ) bacteria. Conclusion: The CMC-TiO 2 -SPE nanocomposites were homogeneously produced. Combination of TiO 2 nanoparticles and dose-dependent SPE led to an improvement of thermal stability, and high potential in antimicrobial and UV-barrier properties. These results can generally highlight the role of the fabricated antimicrobial bio-nanocomposites as a based for different applications especially in food/drug packaging or coating.

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Physicochemical, mechanical, optical, microstructural and antimicrobial properties of novel kefiran-carboxymethyl cellulose biocomposite films as influenced by copper oxide nanoparticles (CuONPs)

Cited by 83 publications

References 36 publications

Flexible thermoplastic starch films functionalized with copper particles for packaging of food products

Flexible thermoplastic starch films functionalized with copper particles for packaging of food products

Prospect of Polysaccharide-Based Materials as Advanced Food Packaging

<p>Fabrication and characterization of a titanium dioxide (TiO2) nanoparticles reinforced bio-nanocomposite containing <em>Miswak</em> (<em>Salvadora persica</em> L.) extract – the antimicrobial, thermo-physical and barrier properties</p>

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