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Title:Two-layer functional coatings of chitosan particles with embedded catechin and pomegranate extracts for potential active packaging
Authors:ID Potrč, Sanja (Author)
ID Kraševac Glaser, Tjaša (Author)
ID Vesel, Alenka (Author)
ID Poklar Ulrih, Nataša (Author)
ID Fras Zemljič, Lidija (Author)
Files:.pdf RAZ_Potrc_Sanja_2020.pdf (2,70 MB)
MD5: CD491D0FD41CED0C4B973CA6BE0FE349
URL https://www.mdpi.com/2073-4360/12/9/1855
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Two-layer functional coatings for polyethylene (PE) and polypropylene (PP) films were developed for the active packaging concept. Prior to coating, the polymer films were activated by O$_2$ and NH$_3$ plasma to increase their surface free energy and to improve the binding capacity and stability of the coatings. The first layer was prepared from a macromolecular chitosan solution, while the second (upper) layer contained chitosan particles with embedded catechin or pomegranate extract. Functionalized films were analyzed physico-chemically to elemental composition using ATR-FTIR spectroscopy and XPS. Further, oxygen permeability and wettability (Contact Angle) were examined. The antimicrobial properties were analyzed by the standard ISO 22196 method, while the antioxidative properties were determined with an ABTS assay. Functionalized films show excellent antioxidative and antimicrobial efficacy. A huge decrease in oxygen permeability was achieved in addition. Moreover, a desorption experiment was also performed, confirming that the migration profile of a compound from the surfaces was in accordance with the required overall migration limit. All these properties indicate the great potential of the developed active films/foils for end-uses in food packaging.
Keywords:plazma, citozan, polifenoli, aktivno pakiranje, plasma, chitosan, polyphenols, coating, active package
Publication status:Published
Publication version:Version of Record
Year of publishing:2020
Number of pages:1-20
Numbering:Vol. 12, iss. 9
PID:20.500.12556/DKUM-81142 New window
ISSN on article:2073-4360
COBISS.SI-ID:25958403 New window
DOI:10.3390/polym12091855 New window
Publication date in DKUM:12.07.2023
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Record is a part of a journal

Shortened title:Polymers
Publisher:Molecular Diversity Preservation International
COBISS.SI-ID:517951257 New window

Document is financed by a project

Funder:Other - Other funder or multiple funders
Funding programme:Republic of Slovenia, Strategy of smart specialization
Name:Functional Food for Future

Funder:EC - European Commission
Funding programme:European Regional Development Fund
Name:Functional Food for Future

Funder:ARRS - Slovenian Research Agency
Project number:J1-6736
Name:Kemijska karcinogeneza - Računalniški pristop

Funder:ARRS - Slovenian Research Agency
Project number:P2-0118
Name:Tekstilna kemija in napredni tekstilni materiali

Funder:ARRS - Slovenian Research Agency
Project number:P2-0032
Name:Procesna sistemska tehnika in trajnostni razvoj


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Keywords:plazma, hitozan, polifenoli, aktivno pakiranje


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