Development of Low-Density Polyethylene Films Coated with Phenolic Substances for Prolonged Bioactivity
The current study proposes an efficient coating methodology for the development of low-density polyethylene (LDPE) films with prolonged bioactivity for food packaging applications. Three natural phenolic-based substances were incorporated at optimized concentrations in methyl-cellulose-based solutio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/23/4580 |
| _version_ | 1797399672938037248 |
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| author | Iro Giotopoulou Renia Fotiadou Haralambos Stamatis Nektaria-Marianthi Barkoula |
| author_facet | Iro Giotopoulou Renia Fotiadou Haralambos Stamatis Nektaria-Marianthi Barkoula |
| author_sort | Iro Giotopoulou |
| collection | DOAJ |
| description | The current study proposes an efficient coating methodology for the development of low-density polyethylene (LDPE) films with prolonged bioactivity for food packaging applications. Three natural phenolic-based substances were incorporated at optimized concentrations in methyl-cellulose-based solutions and used as coatings on LDPE films. The amount of surfactant/emulsifier was optimized to control the entrapment of the bioactive substances, minimizing the loss of the substances during processing, and offering prolonged bioactivity. As a result, the growth of <i>Escherichia coli</i> was substantially inhibited after interaction with the coated films, while coated films presented excellent antioxidant activities and maintained their mechanical performance after coating. Considerable bioactivity was observed after up to 7 days of storage in sealed bags in the case of carvacrol- and thymol-coated films. Interestingly, films coated with olive-leaf extract maintained a high level of antimicrobial and antioxidant properties, at least for 40 days of storage. |
| first_indexed | 2024-03-09T01:44:29Z |
| format | Article |
| id | doaj.art-e5206b15383f4977b95210c1561ee9fa |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T01:44:29Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-e5206b15383f4977b95210c1561ee9fa2023-12-08T15:24:29ZengMDPI AGPolymers2073-43602023-11-011523458010.3390/polym15234580Development of Low-Density Polyethylene Films Coated with Phenolic Substances for Prolonged BioactivityIro Giotopoulou0Renia Fotiadou1Haralambos Stamatis2Nektaria-Marianthi Barkoula3Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceDepartment of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, GreeceDepartment of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, GreeceDepartment of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, GreeceThe current study proposes an efficient coating methodology for the development of low-density polyethylene (LDPE) films with prolonged bioactivity for food packaging applications. Three natural phenolic-based substances were incorporated at optimized concentrations in methyl-cellulose-based solutions and used as coatings on LDPE films. The amount of surfactant/emulsifier was optimized to control the entrapment of the bioactive substances, minimizing the loss of the substances during processing, and offering prolonged bioactivity. As a result, the growth of <i>Escherichia coli</i> was substantially inhibited after interaction with the coated films, while coated films presented excellent antioxidant activities and maintained their mechanical performance after coating. Considerable bioactivity was observed after up to 7 days of storage in sealed bags in the case of carvacrol- and thymol-coated films. Interestingly, films coated with olive-leaf extract maintained a high level of antimicrobial and antioxidant properties, at least for 40 days of storage.https://www.mdpi.com/2073-4360/15/23/4580LDPEcarvacrolthymololive-leaf extractantimicrobialantioxidant |
| spellingShingle | Iro Giotopoulou Renia Fotiadou Haralambos Stamatis Nektaria-Marianthi Barkoula Development of Low-Density Polyethylene Films Coated with Phenolic Substances for Prolonged Bioactivity Polymers LDPE carvacrol thymol olive-leaf extract antimicrobial antioxidant |
| title | Development of Low-Density Polyethylene Films Coated with Phenolic Substances for Prolonged Bioactivity |
| title_full | Development of Low-Density Polyethylene Films Coated with Phenolic Substances for Prolonged Bioactivity |
| title_fullStr | Development of Low-Density Polyethylene Films Coated with Phenolic Substances for Prolonged Bioactivity |
| title_full_unstemmed | Development of Low-Density Polyethylene Films Coated with Phenolic Substances for Prolonged Bioactivity |
| title_short | Development of Low-Density Polyethylene Films Coated with Phenolic Substances for Prolonged Bioactivity |
| title_sort | development of low density polyethylene films coated with phenolic substances for prolonged bioactivity |
| topic | LDPE carvacrol thymol olive-leaf extract antimicrobial antioxidant |
| url | https://www.mdpi.com/2073-4360/15/23/4580 |
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