| Naslov: | Two-layer functional coatings of chitosan particles with embedded catechin and pomegranate extracts for potential active packaging |
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| Avtorji: | ID Potrč, Sanja (Avtor)
ID Kraševac Glaser, Tjaša (Avtor)
ID Vesel, Alenka (Avtor)
ID Poklar Ulrih, Nataša (Avtor)
ID Fras Zemljič, Lidija (Avtor) |
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| Datoteke: |  Potrc-2020-Two-Layer_Functional_Coatings_of_Ch.pdf (2,70 MB)
MD5: 6F212CF1CDF6A92223E39ACE34C527B7
 https://doi.org/10.3390/polym12091855
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Znanstveno delo |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FS - Fakulteta za strojništvo
FKKT - Fakulteta za kemijo in kemijsko tehnologijo
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| Opis: | 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. |
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| Ključne besede: | plasma, chitosan, polyphenols, coating, active package |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 29.07.2020 |
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| Datum sprejetja članka: | 17.08.2020 |
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| Datum objave: | 19.08.2020 |
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| Založnik: | MDPI |
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| Leto izida: | 2020 |
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| Št. strani: | Str. 1-20 |
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| Številčenje: | Letn. 12, št. 9, št. članka 1855 |
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| PID: | 20.500.12556/DKUM-81142  |
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| UDK: | 547.568.5 |
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| COBISS.SI-ID: | 25958403 |
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| DOI: | 10.3390/polym12091855 |
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| ISSN pri članku: | 2073-4360 |
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| Datum objave v DKUM: | 12.07.2023 |
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| Število ogledov: | 618 |
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| Število prenosov: | 62 |
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| Metapodatki: |    |
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| Področja: | Ostalo
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