Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations
Polypropylene (PP) and polyethylene (PE) foils, previously activated by ultraviolet (UV)/ozone, were functionalized using chitosan-extract nanoparticle dispersions. A solution of macromolecular chitosan was applied onto foils as a first layer, followed by the deposition of various extracts encapsula...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-04-01
|
| Series: | International Journal of Molecular Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1422-0067/21/7/2610 |
| _version_ | 1797571024058843136 |
|---|---|
| author | Sanja Potrč Meta Sterniša Sonja Smole Možina Maša Knez Hrnčič Lidija Fras Zemljič |
| author_facet | Sanja Potrč Meta Sterniša Sonja Smole Možina Maša Knez Hrnčič Lidija Fras Zemljič |
| author_sort | Sanja Potrč |
| collection | DOAJ |
| description | Polypropylene (PP) and polyethylene (PE) foils, previously activated by ultraviolet (UV)/ozone, were functionalized using chitosan-extract nanoparticle dispersions. A solution of macromolecular chitosan was applied onto foils as a first layer, followed by the deposition of various extracts encapsulated into chitosan nanoparticles, which were attached as an upper layer. Functionalized foils were analyzed from a bioactive point of view, i.e., regarding antimicrobial and antioxidant activity. Desorption kinetics were also studied. Moreover, barrier properties were examined, as the most important parameter influencing antimicrobial and antioxidant activity. Finally, all these properties were correlated with different surface parameters, determined previously, in order to understand if there is any direct correlation between surface elemental composition, surface charge, contact angle, or morphology and a specific bioactive property. It was shown that great bioactive properties were introduced due to the additive effect of antimicrobial chitosan and antioxidative plant extracts. Moreover, oxygen permeability decreased significantly, and the migration of polyphenols and chitosan from the foil surface was below the OML (overall migration limit), which is very important for food industry applications. Furthermore, surface properties of foils influence to some extent the desired bioactivity. |
| first_indexed | 2024-03-10T20:34:34Z |
| format | Article |
| id | doaj.art-35f7ebee1bf44d09881551b94cd8b58a |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T20:34:34Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-35f7ebee1bf44d09881551b94cd8b58a2023-11-19T21:07:43ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-04-01217261010.3390/ijms21072610Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal FormulationsSanja Potrč0Meta Sterniša1Sonja Smole Možina2Maša Knez Hrnčič3Lidija Fras Zemljič4Laboratory for Characterization and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, SloveniaDepartment of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva101, SI-1000 Ljubljana, SloveniaDepartment of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva101, SI-1000 Ljubljana, SloveniaFaculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, SloveniaLaboratory for Characterization and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, SloveniaPolypropylene (PP) and polyethylene (PE) foils, previously activated by ultraviolet (UV)/ozone, were functionalized using chitosan-extract nanoparticle dispersions. A solution of macromolecular chitosan was applied onto foils as a first layer, followed by the deposition of various extracts encapsulated into chitosan nanoparticles, which were attached as an upper layer. Functionalized foils were analyzed from a bioactive point of view, i.e., regarding antimicrobial and antioxidant activity. Desorption kinetics were also studied. Moreover, barrier properties were examined, as the most important parameter influencing antimicrobial and antioxidant activity. Finally, all these properties were correlated with different surface parameters, determined previously, in order to understand if there is any direct correlation between surface elemental composition, surface charge, contact angle, or morphology and a specific bioactive property. It was shown that great bioactive properties were introduced due to the additive effect of antimicrobial chitosan and antioxidative plant extracts. Moreover, oxygen permeability decreased significantly, and the migration of polyphenols and chitosan from the foil surface was below the OML (overall migration limit), which is very important for food industry applications. Furthermore, surface properties of foils influence to some extent the desired bioactivity.https://www.mdpi.com/1422-0067/21/7/2610food packagingPE/PP functionalizationbioactive propertiesantimicrobialantioxidantactivity |
| spellingShingle | Sanja Potrč Meta Sterniša Sonja Smole Možina Maša Knez Hrnčič Lidija Fras Zemljič Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations International Journal of Molecular Sciences food packaging PE/PP functionalization bioactive properties antimicrobial antioxidant activity |
| title | Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations |
| title_full | Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations |
| title_fullStr | Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations |
| title_full_unstemmed | Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations |
| title_short | Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations |
| title_sort | bioactive characterization of packaging foils coated by chitosan and polyphenol colloidal formulations |
| topic | food packaging PE/PP functionalization bioactive properties antimicrobial antioxidant activity |
| url | https://www.mdpi.com/1422-0067/21/7/2610 |
| work_keys_str_mv | AT sanjapotrc bioactivecharacterizationofpackagingfoilscoatedbychitosanandpolyphenolcolloidalformulations AT metasternisa bioactivecharacterizationofpackagingfoilscoatedbychitosanandpolyphenolcolloidalformulations AT sonjasmolemozina bioactivecharacterizationofpackagingfoilscoatedbychitosanandpolyphenolcolloidalformulations AT masaknezhrncic bioactivecharacterizationofpackagingfoilscoatedbychitosanandpolyphenolcolloidalformulations AT lidijafraszemljic bioactivecharacterizationofpackagingfoilscoatedbychitosanandpolyphenolcolloidalformulations |