Preparation and Characterization of Novel Food Packaging Materials Based on Biodegradable PCL/Ag-Kaolinite Nanocomposites with Controlled Release Properties

Benhacine, Fayçal; Ouargli, Abderrahmane; Hadj‐Hamou, Assia Siham

doi:10.1080/03602559.2018.1471714

Cited by 23 publications

(15 citation statements)

References 56 publications

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“…In this work, the inhibition zone method was used to assess the antimicrobial activity of the PCL/PVC/OMMTs nanobioblends films against two strains of bacteria: Staphylococcus aureus (ATCC25923) and Escherichia coli (ATCC25922). Similar procedure has been followed to that adopted in our previous works …”

Section: Methodsmentioning

confidence: 98%

“…Silicate‐based nanocomposites have sparked great interest in academic and industrial sector s because they showed a remarkable improvement in their mechanical, barrier and thermal properties compared to micro‐ and macro‐composites . In fact, the effective dispersion of the clay within the polymer matrix would be the key component in achieving such improvements.…”

Section: Introductionmentioning

confidence: 99%

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Performances of PCL/PVC/Organoclay Nanobioblends Films for Packaging Applications

Hadj‐Hamou

Yahiaoui

2019

Macromolecular Symposia

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A series of antimicrobial PCL/PVC/OMMTs nanobioblends films are successfully prepared via melt blending process of the poly (ϵ‐caprolactone) (PCL), poly (vinyl chloride) (PVC), and three different clay types namely Cloisite 30B (C30B), trimethylhexadecyl ammonium (OMMT1), and cetylpyridinium chloride monohydrate (OMMT2) modified montmorillonite. All the PCL/PVC/OMMTs nanocomposites display mixed intercalated/partially exfoliated structures as attested by X‐Ray Diffraction and Transmission Electron Microscopy. Glass transition, fusion and cristallization of these nanomaterials are studied using differential scanning calorimetry (DSC). The organoclay effect on the mechanical, barrier and antimicrobial properties is investigated. The results confirm that the insertion of 3 wt% of OMMT (whatever its intercalant agent nature) into the PCL/PVC matrix leads to (1) a remarkable improvement in barrier properties, (2) an interesting enhancement in mechanical properties, and (3) a strong antimicrobial activity against Staphylococcus aureus (Gram‐positive) and Escherichia coli (Gram‐negative).

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Section: Methodsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Performances of PCL/PVC/Organoclay Nanobioblends Films for Packaging Applications

Hadj‐Hamou

Yahiaoui

2019

Macromolecular Symposia

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“…This biopolymer presents some advantages, such as large processing capacity, biocompatibility, safety and high-water resistance due to its hydrophobic character. However, its production in large scale, especially in the packaging field, is limited by its relatively high price, low barrier properties and restricted mechanical performance due to its low melting point [6].…”

Section: Introductionmentioning

confidence: 99%

Biodegradable Poly(ε-Caprolactone) Active Films Loaded with MSU-X Mesoporous Silica for the Release of α-Tocopherol

et al. 2020

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In this study, new active PCL (poly(ε-caprolactone)) films containing α-tocopherol (TOC) and MSU-X mesoporous silica were prepared by melt blending. The studied additives were directly incorporated into the polymer matrix or by impregnating TOC into MSU-X silica (PCL-IMP). Thermal, optical, oxygen and water barrier properties as well as oxidation onset parameters, were studied. Films containing MSU-X and/or TOC showed a significant increase in oxidative onset temperature (OOT) and oxidative induction time (OIT), improving thermal stability against materials oxidation by the addition of mesoporous silica and TOC into the polymer matrix. In addition, the effect of MSU-X addition on the migration behaviour of α-tocopherol from active films was investigated at 40 °C using 50% (v/v) ethanol as fatty food simulant, showing PCL-IMP films the lower release content and diffusion coefficient (3.5 × 10−15 cm2 s−1). Moreover, radical scavenging (DPPH and ABTS) and antibacterial activity against E. coli and S. aureus were favoured by the release of α-tocopherol in the developed films. The obtained results have demonstrated the potential of the new PCL-based active formulations for TOC controlled release in antioxidant and antibacterial food packaging applications.

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“…Some advantages may result from clay‐antimicrobial combinations. One of them is the controlled release of antimicrobials, as demonstrated with Ag–kaolinite . On the other hand, this immobilization may also decrease the antimicrobial activity, as reported for clay‐immobilized AgNPs in chitosan films .…”

Section: Inorganic Antimicrobial Nanostructuresmentioning

confidence: 93%

“…Conversion of graphene into graphene oxide (GO) and reduced GO. Reproduced under a Creative Commons License ( https://creativecommons.org/licenses/by/4.0) from Priyadarsini et al …”

Section: Inorganic Antimicrobial Nanostructuresmentioning

confidence: 99%

Nanostructured Antimicrobials in Food Packaging—Recent Advances

Azeredo

Otoni

Corrêa

et al. 2019

Biotechnology Journal

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Active food packaging systems promote better food quality and/or stability, such as by releasing antimicrobial agents into food. Advantages of adding antimicrobials to the packaging material instead of into the bulk food include controlled diffusion, reduced antimicrobial contents, and improved cost effectiveness. Nanostructured antimicrobials are especially effective due to their high specific surface area. The present review is focused on recent advances and findings on the main nanostructured antimicrobial packaging systems for food packaging purposes. Several kinds of nanostructures, including both inorganic particles and organic structures, have been proven effective antimicrobials by different mechanisms of action and with different application scopes. Moreover, there are systems containing nanocarriers to protect antimicrobials and deliver them in a controlled fashion. On the other hand, scientific data about migration of nanostructures onto food and their toxicity are still limited, requiring special attention from researchers and regulation sectors.

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Preparation and Characterization of Novel Food Packaging Materials Based on Biodegradable PCL/Ag-Kaolinite Nanocomposites with Controlled Release Properties

Cited by 23 publications

References 56 publications

Performances of PCL/PVC/Organoclay Nanobioblends Films for Packaging Applications

Performances of PCL/PVC/Organoclay Nanobioblends Films for Packaging Applications

Biodegradable Poly(ε-Caprolactone) Active Films Loaded with MSU-X Mesoporous Silica for the Release of α-Tocopherol

Nanostructured Antimicrobials in Food Packaging—Recent Advances

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