Chemical and organoleptic changes of curd cheese stored in new and reused active packaging systems made of Ag-graphene-TiO2-PLA

Peter, Anca; Cozmuta, Leonard Mihaly; Nicula, Camelia; Cozmuța, Anca Mihaly; Talasman, Catalina Mihaela; Dražić, Goran; Peñas, Antonio; Calahorro, Antonio J.; Sagratini, Gianni; Silvi, Stefania

doi:10.1016/j.foodchem.2021.130341

Cited by 29 publications

(15 citation statements)

References 36 publications

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“…[268][269][270][271][272][273] The H 2 O permeability of PLLA film added with 0.5-3% Ag-graphene-TiO 2 composite was reduced by 11-27% compared to the neat PLLA film. 274 When Aggraphene-TiO 2 composite (3%) was added to PLLA film, the O 2 permeability of the PLLA film declined by 24.6%. Although the addition of inorganic micro-nano fillers can improve the barrier performance of PLLA, some hydrophilic nanofillers have poor compatibility with hydrophobic PLLA, so self-agglomeration occurs in PLLA to form large clusters.…”

Section: Permeability Of Plla Blend Filmsmentioning

confidence: 99%

“…Typical inorganic nanomaterials, such as titanium dioxide (TiO 2 ), SiO 2 , Ag, graphene, halloysite nanotubes, clay, magnesium oxide (MgO), aluminium oxide (Al 2 O 3 ), montmorillonite and calcium carbonate (CaCO 3 ) and their complex have become effective fillers to enhance barrier property of PLLA 268–273 . The H 2 O permeability of PLLA film added with 0.5–3% Ag–graphene–TiO 2 composite was reduced by 11–27% compared to the neat PLLA film 274 . When Ag–graphene–TiO 2 composite (3%) was added to PLLA film, the O 2 permeability of the PLLA film declined by 24.6%.…”

Section: Modification Of Pllamentioning

confidence: 99%

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Mechanical and gas permeability properties of poly(L‐lactic acid)–based films and their application in fresh produce preservation—Review

Yun,

Liu,

et al. 2024

Packag Technol Sci

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Plastics have remained the best choice for fruit and vegetable packaging due to their exceptional transparency, flexibility, optional good barrier and cost‐effectiveness. However, a large number of plastics end up in the environment after serving their intended purpose and persist there for centuries. Since worldwide attention to environmental issues has become an irreversible historical trend, cost‐effective renewable biodegradable packaging material is highly desirable for the packaging industry to satisfy both industrial demands as well as consumer expectations. Poly (L‐lactic acid) (PLLA), a renewable biodegradable polymer derived from biomass, has been widely studied as a very attractive polymer for food packaging applications. However, its brittle nature and medium CO2/O2 permeability are not friendly for its utilisation in the aspect of fresh agricultural products packaging. In such a context, great efforts have been devoted to improvements in the mechanical and permeability of PLLA to meet the requirements of food packaging. The main purpose of the review is to summarise the mechanical and permeability properties of composite films developed by the incorporation of toughness reinforcing agents into the PLLA matrix. The elongation at break of PLA can be increased up to 250 times by modification, and the CO2 permeability of PLA can be increased by 2–3 times by modification. We also elaborate on studies of the preservation effect of PLLA composite films on fresh fruits and vegetables.

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Section: Permeability Of Plla Blend Filmsmentioning

confidence: 99%

Section: Modification Of Pllamentioning

confidence: 99%

Mechanical and gas permeability properties of poly(L‐lactic acid)–based films and their application in fresh produce preservation—Review

Yun,

Liu,

et al. 2024

Packag Technol Sci

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“…[100] Poly(lactic acid) films containing Ag and TiO 2 nanoparticles obtained by extrusion were described by Peter and coworkers. [101] The addition of nanoparticles (from 0.5 % to 3.0 %) increased the mechanical strength of the films by 30 % and reduced water vapor permeability by 11-27 %.…”

Section: Titanium(iv) Oxide Nanoparticlesmentioning

confidence: 99%

Metal and Metal Oxides Nanoparticles as Nanofillers for Biodegradable Polymers

Wawrzyńczak,

Chudzińska,

Feliczak‐Guzik

2024

ChemPhysChem

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Polymeric materials, despite their many undeniable advantages, nowadays are a major environmental challenge. Thus, in recent years biodegradable polymer matrices have been widely used in various sectors, including the medicinal, chemical, and packaging industry. Their widespread use is due to the properties of biodegradable polymer matrices, among which are their adjustable physicochemical and mechanical properties, as well as lower environmental impact. The properties of biodegradable polymers can be modified with various types of nanofillers, among which clays, organic and inorganic nanoparticles, and carbon nanostructures are most commonly used. The performance of the final product depends on the size and uniformity of the used nanofillers, as well as on their distribution and dispersion in the polymer matrix. This literature review aims to highlight new research results on advances and improvements in the synthesis, physicochemical properties and applications of biodegradable polymer matrices modified with metal nanoparticles and metal oxides.

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“…Zabidi et al [3] have obtained PLA modified with cellulose and thymol/curry essential oil and they have demonstrated the antimicrobial and preservative activity of the active films during the tomato storage in comparison with the nonmodified PLA. Peter et al [4] showed that the best preservative role of PLA during the curd storage was achieved when activating with a content of the active (Aggraphene-TiO 2 ) composite (in the range of 0.5-3 wt%). Moreover, the study reveals that the mechanical resistance was enhanced by 30% by composite addition.…”

Section: Introductionmentioning

confidence: 99%

“…The recycled materials are generating lower carbon footprint than the pristine material and are providing unique opportunity to obtain materials with high added value from traditionally materials considered wastes, such as used food packaging. Peter et al [4] showed that the preservative role of the PLA-based film for curd packaging, after the second use, remained unchanged when the content of the active composite into the PLA was 0.5 wt%. However, whether the percent of the active agent increased to 3 wt%, the active role of the reused film decreased to 85% from the maximum capacity of the new film.…”

Section: Introductionmentioning

confidence: 99%

Polylactic Acid-Based Film Modified with Nano-Ag-Graphene-TiO2: New Film versus Recycled Film

Peter,

Nicula,

Mihaly Cozmuta

et al. 2023

Advances in Polymer Technology

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The increase in the polymer-based materials needs has induced along the waste accumulation, thus argued higher interest in recycling. The study aims to assess the structural, morphological, mechanical resistance, physical–chemical and biochemical characteristics, as well as the preservative role during the curd cheese storage of a recycled polylactic acid (PLA)-based film modified with Ag-graphene-TiO2 nanostructured composite, obtained by recovering the composite from the used film, followed by its incorporation in new PLA. The breaking load of the recycled film was 24% lower than that of the new film and 10% higher than of the neat PLA. Differential scanning calorimetry (DSC) showed changes of the recycled PLA’s surface tension and crystallization degree in a greater extent than in the newly prepared film, revealing better incorporation of the recovered composite into the PLA matrix. Fourier transformed infrared spectroscopy showed the formation of C–O–Ti bridges between composite and PLA both in new and recycled film. Oxygen transmission rate (OTR) of the new and recycled film decreased by 33% and 45%, respectively, in comparison with reference PLA. The curd cheese was successfully stored in the recycled packaging; the organoleptic characteristics of cheese wrapped in recycled film were superior in comparison with the new film. The variation of fat and protein contents and mass loss was the lowest when the recycled film was used as packaging material. The study successfully showed the possibility to recover and recycle the used PLA-based films modified with inorganic nanocomposites.

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Chemical and organoleptic changes of curd cheese stored in new and reused active packaging systems made of Ag-graphene-TiO2-PLA

Cited by 29 publications

References 36 publications

Mechanical and gas permeability properties of poly(L‐lactic acid)–based films and their application in fresh produce preservation—Review

Mechanical and gas permeability properties of poly(L‐lactic acid)–based films and their application in fresh produce preservation—Review

Metal and Metal Oxides Nanoparticles as Nanofillers for Biodegradable Polymers

Polylactic Acid-Based Film Modified with Nano-Ag-Graphene-TiO2: New Film versus Recycled Film

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