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Bioactive characterization of packaging foils coated by chitosan and polyphenol colloidal formulations
ID
Potrč, Sanja
(
Author
),
ID
Sterniša, Meta
(
Author
),
ID
Smole Možina, Sonja
(
Author
),
ID
Knez Hrnčič, Maša
(
Author
),
ID
Fras Zemljič, Lidija
(
Author
)
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MD5: DC2CE94495E1F0CBC12A030E7A159C83
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https://www.mdpi.com/1422-0067/21/7/2610
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Abstract
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.
Language:
English
Keywords:
food packaging
,
PE/PP functionalization
,
polyphenols
,
bioactive properties
,
activity
,
antimicrobial
,
antioxidant
,
chitosan
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Publication status:
Published
Publication version:
Version of Record
Year:
2020
Number of pages:
22 str.
Numbering:
Vol. 21, iss. 7, art. 2610
PID:
20.500.12556/RUL-133416
UDC:
66.02
ISSN on article:
1422-0067
DOI:
10.3390/ijms21072610
COBISS.SI-ID:
23115542
Publication date in RUL:
26.11.2021
Views:
1318
Downloads:
171
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Record is a part of a journal
Title:
International journal of molecular sciences
Shortened title:
Int. j. mol. sci.
Publisher:
MDPI
ISSN:
1422-0067
COBISS.SI-ID:
2779162
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
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.
Licensing start date:
09.04.2020
Secondary language
Language:
Slovenian
Keywords:
bioaktivne lastnosti
,
antioksidanti
,
antimikrobi
,
citozan
,
polifenoli
Projects
Funder:
Other - Other funder or multiple funders
Funding programme:
Republic of Slovenia
Name:
Functional food for Future
Acronym:
F4F
Funder:
EC - European Commission
Funding programme:
European Regional Development Fund
Name:
Functional food for Future
Acronym:
F4F
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0118
Name:
Tekstilna kemija
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0032
Name:
Procesna sistemska tehnika in trajnostni razvoj
Funder:
ARRS - Slovenian Research Agency
Project number:
P4-0116
Name:
Mikrobiologija in biotehnologija živil in okolja
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