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
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 pr...
| Published in: | Molecules |
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| Main Authors: | , , , , , , , , , |
| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Online Access: | https://www.mdpi.com/1420-3049/27/4/1231 |
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| author | Aris E. Giannakas Constantinos E. Salmas Areti Leontiou Dimitrios Moschovas Maria Baikousi Eleni Kollia Vasiliki Tsigkou Anastasios Karakassides Apostolos Avgeropoulos Charalampos Proestos |
| author_facet | Aris E. Giannakas Constantinos E. Salmas Areti Leontiou Dimitrios Moschovas Maria Baikousi Eleni Kollia Vasiliki Tsigkou Anastasios Karakassides Apostolos Avgeropoulos Charalampos Proestos |
| author_sort | Aris E. Giannakas |
| collection | DOAJ |
| container_title | Molecules |
| description | 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. |
| format | Article |
| id | doaj-art-e2eadc27efb145cda7184def62d0fb13 |
| institution | Directory of Open Access Journals |
| issn | 1420-3049 |
| language | English |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-e2eadc27efb145cda7184def62d0fb132025-08-20T00:11:41ZengMDPI AGMolecules1420-30492022-02-01274123110.3390/molecules27041231Performance 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 FilmsAris E. Giannakas0Constantinos E. Salmas1Areti Leontiou2Dimitrios Moschovas3Maria Baikousi4Eleni Kollia5Vasiliki Tsigkou6Anastasios Karakassides7Apostolos Avgeropoulos8Charalampos Proestos9Department of Food Science and Technology, University of Patras, 30100 Agrinio, GreeceDepartment of Material Science & Engineering, University of Ioannina, 45110 Ioannina, GreeceLaboratory of Food Technology, Department of Business Administration of Agricultural and Food Enterprises, University of Patras, 30100 Agrinio, GreeceDepartment of Material Science & Engineering, University of Ioannina, 45110 Ioannina, GreeceDepartment of Material Science & 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, GreeceDepartment of Material Science & Engineering, University of Ioannina, 45110 Ioannina, GreeceDepartment of Material Science & Engineering, University of Ioannina, 45110 Ioannina, GreeceLaboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, GreeceToday, 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.https://www.mdpi.com/1420-3049/27/4/1231thyme oilsodium montmorillonitepoly-L-lactic acidactive packagingantioxidant activityantimicrobial activity |
| spellingShingle | Aris E. Giannakas Constantinos E. Salmas Areti Leontiou Dimitrios Moschovas Maria Baikousi Eleni Kollia Vasiliki Tsigkou Anastasios Karakassides Apostolos Avgeropoulos Charalampos Proestos 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 thyme oil sodium montmorillonite poly-L-lactic acid active packaging antioxidant activity antimicrobial activity |
| title | 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 |
| title_full | 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 |
| title_fullStr | 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 |
| title_full_unstemmed | 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 |
| title_short | 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 |
| title_sort | 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 |
| topic | thyme oil sodium montmorillonite poly-L-lactic acid active packaging antioxidant activity antimicrobial activity |
| url | https://www.mdpi.com/1420-3049/27/4/1231 |
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