20.500.12556/RUL-133688 Development of biodegradable whey-based laminate functionalised by chitosan-natural extract formulations In this research, antimicrobial polysaccharide chitosan and natural extracts were used as surface coating of a plastic laminate with an integrated whey layer on the inside. The aim was to establish the biodegradable and active concept of packaging laminates. For this purpose, chitosan nanoparticles (CSNPs) with embedded rosemary or cinnamon extracts were synthesised and characterised. Additionally, a whey-based laminate was functionalised: i) chitosan macromolecular solution was applied as first layer and ii) cinnamon or rosemary extracts encapsulated in CSNPs were applied as upper layer (layer wise deposition). Such functionalised whey-based laminate was physicochemically characterized in terms of elemental surface composition, wettability, morphology and oxygen permeability. The antimicrobial activity was tested against Staphylococcus aureus, Escherichia coli, Aspergillus flavus and Penicillium verrucosum. The antioxidant properties were determined using the ABTS assay. It could be shown that after functionalization of the films with the above-mentioned strategy, the wettability was improved. Furthermore, such whey-based laminates still show excellent barrier properties, good antimicrobial activity and a remarkable antioxidative activity. In addition to the improved biodegradability, this type of lamination could also have a positive effect on the shelf-life of products packaged in such structured films. whey laminate functionalization active packaging chitosan plant extracts antimicrobial antioxidants funkcionalizacija aktivna embalaža hitozan rastlinski izvlečki antimikrobna učinkovitost antioksidanti true false true Angleški jezik Slovenski jezik Članek v reviji 2021-12-09 10:17:01 2021-12-09 10:17:03 2022-09-13 03:52:05 0000-00-00 00:00:00 2020 0 0 19 str. iss. 10, art. 3668 Vol. 21 May 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 677.017:577 1422-0067 10.3390/ijms21103668 16763907 RAZ_Potrc_Sanja_2020.pdf RAZ_Potrc_Sanja_2020.pdf 1 C6CCC0F3265C8C5074F165F9F696FA44 46d7201996442954aaf0891e617fe373f76dba0629d7df48a42150229f6faa59 b89c0075-58d1-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151964 https://www.mdpi.com/1422-0067/21/10/3668 0 3fbe50b2-58d1-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151963 Biotehniška fakulteta 0 0 0