Effect of Copper and Titanium-Exchanged Montmorillonite Nanostructures on the Packaging Performance of Chitosan/Poly-Vinyl-Alcohol-Based Active Packaging Nanocomposite Films
In this study, CuMt and TiMt montmorillonites were produced via an ion-exchange process with Cu<sup>+</sup> and Ti<sup>4+</sup> ions. These nanostructured materials were characterized with X-ray diffraction (XRD) and fourier transform infrared spectroscopy (FTIR) measurements...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/10/12/3038 |
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| author | Constantinos E. Salmas Aris E. Giannakas Maria Baikousi Eleni Kollia Vasiliki Tsigkou Charalampos Proestos |
| author_facet | Constantinos E. Salmas Aris E. Giannakas Maria Baikousi Eleni Kollia Vasiliki Tsigkou Charalampos Proestos |
| author_sort | Constantinos E. Salmas |
| collection | DOAJ |
| description | In this study, CuMt and TiMt montmorillonites were produced via an ion-exchange process with Cu<sup>+</sup> and Ti<sup>4+</sup> ions. These nanostructured materials were characterized with X-ray diffraction (XRD) and fourier transform infrared spectroscopy (FTIR) measurements and added as nanoreinforcements and active agents in chitosan (CS)/poly-vinyl-alcohol (PVOH)-based packaging films. The developed films were characterized by XRD and FTIR measurements. The antimicrobial, tensile, and oxygen/water-barrier measurements for the evaluation of the packaging performance were carried out to the obtained CS/PVOH/CuMt and CS/PVOH/TiMt films. The results of this study indicated that CS/PVOH/CuMt film is a stronger intercalated nanocomposite structure compared to the CS/PVOH/TiMt film. This fact reflected higher tensile strength and water/oxygen-barrier properties. The antibacterial activity of these films was tested against four food pathogenic bacteria: <i>Escherichia coli</i>, <i>Staphylococcus aureus</i>, <i>Salmonella enterica</i> and <i>Listeria monocytogenes</i>. Results showed that in most cases, the antibacterial activity was generated by the CuMt and TiMt nanostructures. Thus, both CS/PVOH/CuMt and CS/PVOH/TiMt films are nanocomposite candidates with very good perspectives for future applications on food edible active packaging. |
| first_indexed | 2024-03-10T04:08:00Z |
| format | Article |
| id | doaj.art-25683f981534429aa989605cbe79da0c |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T04:08:00Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-25683f981534429aa989605cbe79da0c2023-11-23T08:17:59ZengMDPI AGFoods2304-81582021-12-011012303810.3390/foods10123038Effect of Copper and Titanium-Exchanged Montmorillonite Nanostructures on the Packaging Performance of Chitosan/Poly-Vinyl-Alcohol-Based Active Packaging Nanocomposite FilmsConstantinos E. Salmas0Aris E. Giannakas1Maria Baikousi2Eleni Kollia3Vasiliki Tsigkou4Charalampos Proestos5Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceDepartment of Food Science and Technology, University of Patras, 30100 Agrinio, GreeceDepartment of Material Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceLaboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, GreeceLaboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, GreeceLaboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, GreeceIn this study, CuMt and TiMt montmorillonites were produced via an ion-exchange process with Cu<sup>+</sup> and Ti<sup>4+</sup> ions. These nanostructured materials were characterized with X-ray diffraction (XRD) and fourier transform infrared spectroscopy (FTIR) measurements and added as nanoreinforcements and active agents in chitosan (CS)/poly-vinyl-alcohol (PVOH)-based packaging films. The developed films were characterized by XRD and FTIR measurements. The antimicrobial, tensile, and oxygen/water-barrier measurements for the evaluation of the packaging performance were carried out to the obtained CS/PVOH/CuMt and CS/PVOH/TiMt films. The results of this study indicated that CS/PVOH/CuMt film is a stronger intercalated nanocomposite structure compared to the CS/PVOH/TiMt film. This fact reflected higher tensile strength and water/oxygen-barrier properties. The antibacterial activity of these films was tested against four food pathogenic bacteria: <i>Escherichia coli</i>, <i>Staphylococcus aureus</i>, <i>Salmonella enterica</i> and <i>Listeria monocytogenes</i>. Results showed that in most cases, the antibacterial activity was generated by the CuMt and TiMt nanostructures. Thus, both CS/PVOH/CuMt and CS/PVOH/TiMt films are nanocomposite candidates with very good perspectives for future applications on food edible active packaging.https://www.mdpi.com/2304-8158/10/12/3038coppertitaniummontmorillonitechitosanpoly-vinyl-alcoholnanocomposites |
| spellingShingle | Constantinos E. Salmas Aris E. Giannakas Maria Baikousi Eleni Kollia Vasiliki Tsigkou Charalampos Proestos Effect of Copper and Titanium-Exchanged Montmorillonite Nanostructures on the Packaging Performance of Chitosan/Poly-Vinyl-Alcohol-Based Active Packaging Nanocomposite Films Foods copper titanium montmorillonite chitosan poly-vinyl-alcohol nanocomposites |
| title | Effect of Copper and Titanium-Exchanged Montmorillonite Nanostructures on the Packaging Performance of Chitosan/Poly-Vinyl-Alcohol-Based Active Packaging Nanocomposite Films |
| title_full | Effect of Copper and Titanium-Exchanged Montmorillonite Nanostructures on the Packaging Performance of Chitosan/Poly-Vinyl-Alcohol-Based Active Packaging Nanocomposite Films |
| title_fullStr | Effect of Copper and Titanium-Exchanged Montmorillonite Nanostructures on the Packaging Performance of Chitosan/Poly-Vinyl-Alcohol-Based Active Packaging Nanocomposite Films |
| title_full_unstemmed | Effect of Copper and Titanium-Exchanged Montmorillonite Nanostructures on the Packaging Performance of Chitosan/Poly-Vinyl-Alcohol-Based Active Packaging Nanocomposite Films |
| title_short | Effect of Copper and Titanium-Exchanged Montmorillonite Nanostructures on the Packaging Performance of Chitosan/Poly-Vinyl-Alcohol-Based Active Packaging Nanocomposite Films |
| title_sort | effect of copper and titanium exchanged montmorillonite nanostructures on the packaging performance of chitosan poly vinyl alcohol based active packaging nanocomposite films |
| topic | copper titanium montmorillonite chitosan poly-vinyl-alcohol nanocomposites |
| url | https://www.mdpi.com/2304-8158/10/12/3038 |
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