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Active Polysaccharide Films Incorporating Cannabis sativa Flower Extract for Extending the Shelf Life of Freeze-Dried Berries

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dc.abstract.enIn this study, films based on polysaccharides with C. sativa flower extract were prepared for selected freeze-dried fruits: raspberry (Rubus idaeus L.) and blueberry (Vaccinium corymbosum L.). The extract used affected the barrier and mechanical properties of the film. The elongation values of the film ranged from 32.5 ± 8.6 [%] (for sample 0) to 44.8 ± 8.2 [%] (for sample 4.0 F). The addition of the extract resulted in an increase in polyphenol content, proportional to the quantity of extract used. Spearman's rank correlation analysis showed particularly strong correlations between colour indices (L*, a*, b*) and parameters describing antioxidant activity. The use of C. sativa flower extract in the polysaccharide matrix reduced the degradation of bioactive compounds during the storage of packaged fruit. In all cases of stored raspberries, a decrease in the number of moulds and yeasts was observed after 2 and 8 weeks. The greatest reduction in moulds and yeasts was recorded for the 4.0 F film (from 0.86 to 0.64 log cfu/g). In the case of blueberries, the total number of bacteria before storage was 2.52 log cfu/g, while after 8 weeks of storage in 4.0 F, this number significantly decreased to 2.28 log cfu/g. As in the case of raspberries, a reduction in mould and yeast was observed, with concentrations falling from an initial value of 0.89 to 0.67 log cfu/g after 8 weeks of storage at 4.0 F.
dc.affiliationWydział Nauk o Żywności i Żywieniu
dc.affiliation.instituteKatedra Technologii Żywności Pochodzenia Roślinnego
dc.contributor.authorDobrucka, Renata
dc.contributor.authorStudzińska-Sroka, Elżbieta
dc.contributor.authorPaczkowska-Walendowska, Magdalena
dc.contributor.authorCielecka-Piontek, Judyta
dc.contributor.authorGumienna, Małgorzata
dc.contributor.authorLasik-Kurdyś, Małgorzata
dc.contributor.authorSzymański, Marcin
dc.date.access2026-01-27
dc.date.accessioned2026-02-27T12:17:57Z
dc.date.available2026-02-27T12:17:57Z
dc.date.copyright2026-01-27
dc.date.issued2026-01-27
dc.description.abstract<jats:p>In this study, films based on polysaccharides with C. sativa flower extract were prepared for selected freeze-dried fruits: raspberry (Rubus idaeus L.) and blueberry (Vaccinium corymbosum L.). The extract used affected the barrier and mechanical properties of the film. The elongation values of the film ranged from 32.5 ± 8.6 [%] (for sample 0) to 44.8 ± 8.2 [%] (for sample 4.0 F). The addition of the extract resulted in an increase in polyphenol content, proportional to the quantity of extract used. Spearman’s rank correlation analysis showed particularly strong correlations between colour indices (L*, a*, b*) and parameters describing antioxidant activity. The use of C. sativa flower extract in the polysaccharide matrix reduced the degradation of bioactive compounds during the storage of packaged fruit. In all cases of stored raspberries, a decrease in the number of moulds and yeasts was observed after 2 and 8 weeks. The greatest reduction in moulds and yeasts was recorded for the 4.0 F film (from 0.86 to 0.64 log cfu/g). In the case of blueberries, the total number of bacteria before storage was 2.52 log cfu/g, while after 8 weeks of storage in 4.0 F, this number significantly decreased to 2.28 log cfu/g. As in the case of raspberries, a reduction in mould and yeast was observed, with concentrations falling from an initial value of 0.89 to 0.67 log cfu/g after 8 weeks of storage at 4.0 F.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if4,6
dc.description.number3
dc.description.points140
dc.description.versionfinal_author
dc.description.volume31
dc.identifier.doi10.3390/molecules31030443
dc.identifier.issn1420-3049
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/7529
dc.identifier.weblinkhttps://www.mdpi.com/1420-3049/31/3/443
dc.languageen
dc.pbn.affiliationfood and nutrition technology
dc.relation.ispartofMolecules
dc.relation.pagesart. 443
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.enactive packaging
dc.subject.enbioactive compounds
dc.subject.enfreeze-dried berries
dc.subject.enpolysaccharide films
dc.titleActive Polysaccharide Films Incorporating Cannabis sativa Flower Extract for Extending the Shelf Life of Freeze-Dried Berries
dc.title.volumethe Special Issue Development of Active Bio-Packaging Films for Food Industry with Natural Bioactive Compounds
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue3
oaire.citation.volume31