An overview of clay-polymer nanocomposites containing bioactive compounds for food packaging applications

Cheikh, Dorsaf; Majdoub, Hatem; Darder, Margarita

doi:10.1016/j.clay.2021.106335

Cited by 69 publications

(45 citation statements)

References 85 publications

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“…Such nanomaterials exhibit controlled released antimicrobial activity, antioxidant activity, and aroma properties. The obtained essential oils/nanoclay hybrids [14] can be added into polymer or biopolymer matrixes, providing active packaging films and/or coatings with potential controllable antioxidant and/or antimicrobial activity [15]. The term active packaging refers to packaging technologies which are used with foods, pharmaceuticals, and other products.…”

Section: Introductionmentioning

confidence: 99%

Performance of Thyme Oil@Na-Montmorillonite and Thyme Oil@Organo-Modified Montmorillonite Nanostructures on the Development of Melt-Extruded Poly-L-lactic Acid Antioxidant Active Packaging Films

et al. 2022

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Today, the use of natural biodegradable materials in the production processes is more and more adopted by industry to achieve cyclic economy targets and to improve environmental and human health indexes. Active packaging is the latest trend for food preservation. In this work, nanostructures were prepared by incorporation of thyme oil with natural natrium-montmorillonite and organo-montmorillonite with two different techniques, direct impregnation and the green evaporation–adsorption process. Such nanostructures were mixed with poly-L-lactic-acid for the first time via an extrusion molding process to develop a new packaging film. Comparisons of morphological, mechanical, and other basic properties for food packaging were carried out via XRD, FTIR, TG, SEM/EDS, oxygen and water vapor permeation, and antimicrobial and antioxidant activity for the first time. Results showed that poly-L-lactic-acid could be modified with clays and essential oils to produce improved active packaging films. The final product exhibits food odor prevention characteristics and shelf-life extension capabilities, and it could be used for active packaging. The films based on OrgMt clay seems to be more promising, while the thyme oil addition improves their behavior as active packaging. The PLLA/3%TO@OrgMt and PLLA/5%TO@OrgMt films were qualified between the tested samples as the most promising materials for this purpose.

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Section: Introductionmentioning

confidence: 99%

Performance of Thyme Oil@Na-Montmorillonite and Thyme Oil@Organo-Modified Montmorillonite Nanostructures on the Development of Melt-Extruded Poly-L-lactic Acid Antioxidant Active Packaging Films

et al. 2022

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“…25,26 Such weak forces can be overcome to form exfoliated montmorillonite nanoplatelets with a high-aspect ratio and a large surface area which makes it a good candidate as a supporting material for rather good distribution of nanoobjects. 25,26 Moreover, significant improvements have been noted in temperature stability, mechanical and barrier properties of clay incorporated composites provided that montmorillonite is successfully exfoliated to nanoplatelets and disperses homogeneously in the polymer matrix. 25,26 In this study, clay nanoplatelets are used as a support for ZnO nanorods to be distributed on their surfaces, expecting to enhance the effective area, which in turn could increase the interaction of the nanocomposite with the bacteria.…”

Section: Introductionmentioning

confidence: 99%

“…25,26 Moreover, significant improvements have been noted in temperature stability, mechanical and barrier properties of clay incorporated composites provided that montmorillonite is successfully exfoliated to nanoplatelets and disperses homogeneously in the polymer matrix. 25,26 In this study, clay nanoplatelets are used as a support for ZnO nanorods to be distributed on their surfaces, expecting to enhance the effective area, which in turn could increase the interaction of the nanocomposite with the bacteria. Besides, exfoliation of clay platelets by ZnO nanorods could enhance the mechanical properties of the final composites.…”

Section: Introductionmentioning

confidence: 99%

“…Montmorillonite is a layered aluminosilicate of 2:1 type structures. One octahedral platelet takes place between two tetrahedral platelets, resulting in van der Waals force and electrostatic force between the adjacent layers 25,26 . Such weak forces can be overcome to form exfoliated montmorillonite nanoplatelets with a high‐aspect ratio and a large surface area which makes it a good candidate as a supporting material for rather good distribution of nano‐objects 25,26 .…”

Section: Introductionmentioning

confidence: 99%

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Enhancing mechanical and antibacterial properties of polycaprolactone nanocomposite nanofibers using decorated clay with ZnO nanorods

Maghfoori

Najmoddin

Pezeshki‐Modaress

2022

J of Applied Polymer Sci

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It is urgently necessitate to develop a construct with desirable mechanical properties and antibacterial activity for biomedical applications. Zinc oxide (ZnO) has emerged as a promising antibacterial inorganic agent for the improvement of biopolymer scaffold properties. However, its agglomeration/aggregation has an adverse effect on its performance. In the present work, clay platelets have served as a substrate for decoration of high density, well‐distributed ZnO nanorods via in‐situ synthesis. Then, polycaprolactone (PCL) nanofibers containing 1%, 2%, 4%, and 6% ZnO nanorods decorated on clay platelets (Clay@ ZnO) are fabricated using the electrospinning technique. The tensile strength and modulus of the PCL scaffold are significantly enhanced by increasing Clay@ ZnO content, thanks to the presence of well‐distributed ZnO rods on exfoliated clay platelets. However, the maximum elongation at break is observed for PCL/1% (Clay@ ZnO). Disc diffusion method reveals that good coverage of clay platelets with ZnO nanorods boosts the antibacterial performance of ZnO against both Staphylococcus aureus and Escherichia coli bacteria strains. Moreover, incorporation of Clay@ ZnO powders into the PCL scaffold considerably enhances its antibacterial activity. Cell culturing assay demonstrates the favorable cytocompatibility of prepared nanocomposite nanofibers by promoting cell attachment and proliferation. Such engineered nanocomposite has a high potential to utilize in biomedical applications.

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“…Polymer nanocomposites are an interesting and rapidly growing class of novel materials with enhanced properties, and these enhancements can be observed even at low nanofiller loading. Polymer nanocomposites are considered—due to their properties—as promising materials in a wide variety of applications, including automotive, aerospace, mechanics, electronics [ 1 ], catalysis [ 2 ], food packing [ 3 ], medicine [ 4 ] and environment protection [ 5 , 6 ].…”

mentioning

confidence: 99%

Polymer Nanocomposites: Preparation, Characterisation and Applications

Pielichowska

2022

Nanomaterials

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An overview of clay-polymer nanocomposites containing bioactive compounds for food packaging applications

Cited by 69 publications

References 85 publications

Performance of Thyme Oil@Na-Montmorillonite and Thyme Oil@Organo-Modified Montmorillonite Nanostructures on the Development of Melt-Extruded Poly-L-lactic Acid Antioxidant Active Packaging Films

Performance of Thyme Oil@Na-Montmorillonite and Thyme Oil@Organo-Modified Montmorillonite Nanostructures on the Development of Melt-Extruded Poly-L-lactic Acid Antioxidant Active Packaging Films

Enhancing mechanical and antibacterial properties of polycaprolactone nanocomposite nanofibers using decorated clay with ZnO nanorods

Polymer Nanocomposites: Preparation, Characterisation and Applications

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