Development of ZnO/Na-Montmorillonite Hybrid Nanostructures Used for PVOH/ZnO/Na-Montmorillonite Active Packaging Films Preparation via a Melt-Extrusion Process
Nowadays, the shelf-life extension of foods is a topic of major interest because of its environmental and economic benefits. For this purpose, various methods like deep-freezing, ultra-high-temperature pasteurization, drying methods, use of chemicals, controlled-atmosphere preservation, ionizing irr...
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MDPI AG
2020-05-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/6/1079 |
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| author | Constantinos Salmas Aris Giannakas Petros Katapodis Areti Leontiou Dimitrios Moschovas Andreas Karydis-Messinis |
| author_facet | Constantinos Salmas Aris Giannakas Petros Katapodis Areti Leontiou Dimitrios Moschovas Andreas Karydis-Messinis |
| author_sort | Constantinos Salmas |
| collection | DOAJ |
| description | Nowadays, the shelf-life extension of foods is a topic of major interest because of its environmental and economic benefits. For this purpose, various methods like deep-freezing, ultra-high-temperature pasteurization, drying methods, use of chemicals, controlled-atmosphere preservation, ionizing irradiation, and were investigated. During the last years, the smart packaging for foods using natural biodegradable components is of great interest because it provides positive environmental fingerprint and high shelf-life extension. In the present work, a new nanostructured composite material, the ZnO/Na-Montmorillonite hybrid, was developed. The high antimicrobial properties of the 3-D ZnO material in combination with the high barrier and strength properties of the 2-D Na-Montmorillonite material provided a high promising component for food smart packaging applications. As an extra innovation of this process, the ZnO nanorods coated the external surface of the Na-Montmorillonite and it was not intercalated into the clay as a pillaring material. This new material was incorporated with a 3% <i>w/w</i> composition with a biodegradable poly(vinyl)alcohol (PVOH) polymeric matrix which also exhibits antimicrobial activity. The final product was tested via XRD, FTIR, SEM, tensile test, water sorption, water vapor permeability, oxygen permeability UV–vis, and anti-microbial activity tests and it exhibited advanced mechanical and antimicrobial properties, especially for a ZnO/Na-Montmorillonite fraction of 4:1. |
| first_indexed | 2024-03-10T19:28:15Z |
| format | Article |
| id | doaj.art-f020016135cb4b029c01bab63bed7051 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T19:28:15Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-f020016135cb4b029c01bab63bed70512023-11-20T02:23:00ZengMDPI AGNanomaterials2079-49912020-05-01106107910.3390/nano10061079Development of ZnO/Na-Montmorillonite Hybrid Nanostructures Used for PVOH/ZnO/Na-Montmorillonite Active Packaging Films Preparation via a Melt-Extrusion ProcessConstantinos Salmas0Aris Giannakas1Petros Katapodis2Areti Leontiou3Dimitrios Moschovas4Andreas Karydis-Messinis5Department of Materials Science & Engineering, School of Engineering, University of Ioannina, GR-45110 Ioannina, GreeceDepartment of Food Science and Technology, University of Patras, GR-30100 G. Agrinio, GreeceDepartment of Biological Applications & Technology, University of Ioannina, GR-45110 Ioannina, GreeceDepartment of Business Administration of Food and Agricultural Enterprises, University of Patras, GR-30100 G. Agrinio, GreeceDepartment of Materials Science & Engineering, School of Engineering, University of Ioannina, GR-45110 Ioannina, GreeceDepartment of Materials Science & Engineering, School of Engineering, University of Ioannina, GR-45110 Ioannina, GreeceNowadays, the shelf-life extension of foods is a topic of major interest because of its environmental and economic benefits. For this purpose, various methods like deep-freezing, ultra-high-temperature pasteurization, drying methods, use of chemicals, controlled-atmosphere preservation, ionizing irradiation, and were investigated. During the last years, the smart packaging for foods using natural biodegradable components is of great interest because it provides positive environmental fingerprint and high shelf-life extension. In the present work, a new nanostructured composite material, the ZnO/Na-Montmorillonite hybrid, was developed. The high antimicrobial properties of the 3-D ZnO material in combination with the high barrier and strength properties of the 2-D Na-Montmorillonite material provided a high promising component for food smart packaging applications. As an extra innovation of this process, the ZnO nanorods coated the external surface of the Na-Montmorillonite and it was not intercalated into the clay as a pillaring material. This new material was incorporated with a 3% <i>w/w</i> composition with a biodegradable poly(vinyl)alcohol (PVOH) polymeric matrix which also exhibits antimicrobial activity. The final product was tested via XRD, FTIR, SEM, tensile test, water sorption, water vapor permeability, oxygen permeability UV–vis, and anti-microbial activity tests and it exhibited advanced mechanical and antimicrobial properties, especially for a ZnO/Na-Montmorillonite fraction of 4:1.https://www.mdpi.com/2079-4991/10/6/1079active packaging filmsfood packaging filmszinc oxide nanorodshybrid nanostructuresnanocompositesmelt-extrusion process |
| spellingShingle | Constantinos Salmas Aris Giannakas Petros Katapodis Areti Leontiou Dimitrios Moschovas Andreas Karydis-Messinis Development of ZnO/Na-Montmorillonite Hybrid Nanostructures Used for PVOH/ZnO/Na-Montmorillonite Active Packaging Films Preparation via a Melt-Extrusion Process Nanomaterials active packaging films food packaging films zinc oxide nanorods hybrid nanostructures nanocomposites melt-extrusion process |
| title | Development of ZnO/Na-Montmorillonite Hybrid Nanostructures Used for PVOH/ZnO/Na-Montmorillonite Active Packaging Films Preparation via a Melt-Extrusion Process |
| title_full | Development of ZnO/Na-Montmorillonite Hybrid Nanostructures Used for PVOH/ZnO/Na-Montmorillonite Active Packaging Films Preparation via a Melt-Extrusion Process |
| title_fullStr | Development of ZnO/Na-Montmorillonite Hybrid Nanostructures Used for PVOH/ZnO/Na-Montmorillonite Active Packaging Films Preparation via a Melt-Extrusion Process |
| title_full_unstemmed | Development of ZnO/Na-Montmorillonite Hybrid Nanostructures Used for PVOH/ZnO/Na-Montmorillonite Active Packaging Films Preparation via a Melt-Extrusion Process |
| title_short | Development of ZnO/Na-Montmorillonite Hybrid Nanostructures Used for PVOH/ZnO/Na-Montmorillonite Active Packaging Films Preparation via a Melt-Extrusion Process |
| title_sort | development of zno na montmorillonite hybrid nanostructures used for pvoh zno na montmorillonite active packaging films preparation via a melt extrusion process |
| topic | active packaging films food packaging films zinc oxide nanorods hybrid nanostructures nanocomposites melt-extrusion process |
| url | https://www.mdpi.com/2079-4991/10/6/1079 |
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