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dc.creatorBalanč, Bojana
dc.creatorKalušević, Ana
dc.creatorDrvenica, Ivana
dc.creatorCoelho, Maria Teresa
dc.creatorĐorđević, Verica
dc.creatorAlves, Vitor D.
dc.creatorSousa, Isabel
dc.creatorMoldao-Martins, Margarida
dc.creatorRakić, Vesna M.
dc.creatorNedović, Viktor
dc.creatorBugarski, Branko
dc.date.accessioned2021-03-10T13:10:10Z
dc.date.available2021-03-10T13:10:10Z
dc.date.issued2016
dc.identifier.issn0022-1147
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/3376
dc.description.abstractCarqueja (Pterospartum tridentatum) is an endemic species and various bioactive compounds have been identified in its aqueous extract. The aim of this study was to protect the natural antioxidants from the aqueous extract of carqueja by encapsulation in Ca-alginate microbeads and Ca-alginate microbeads containing 10% and 20% (w/v) of inulin. The microbeads produced by electrostatic extrusion technique had an average diameter from 625 mu m to 830 mu m depending on the portion of inulin. The sphericity factor of the hydrogel microbeads had values between 0.014 and 0.026, while freeze dried microbeads had irregular shape, especially those with no excipient. The reduction in microbeads size after freeze drying process (expressed as shrinkage factor) ranged from 0.338 (alginate microbeads with 20% (w/v) of inulin) to 0.523 (plain alginate microbeads). The expressed radical scavenging activity against ABTS and DPPH radicals was found to be between 30% and 40% for encapsulated extract, while the fresh extract showed around 47% and 57% of radical scavenging activity for ABTS and DPPH radicals, respectively. The correlation between antioxidant activity and the total phenolic content were found to be positive (in both assay methods, DPPH and ABTS), which indicate that the addition of inulin didn't have influence on antioxidant activity. The presence of inulin reduced stiffness of the hydrogel, and protected bead structure from collapse upon freeze-drying. Alginate-inulin beads are envisaged to be used for delivery of aqueous P. tridentatum extract in functional food products.en
dc.publisherWiley, Hoboken
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/46010/RS//
dc.relationFundacao para a Ciencia e a Tecnologia, PortugalPortuguese Foundation for Science and Technology
dc.rightsrestrictedAccess
dc.sourceJournal of Food Science
dc.subjectalginateen
dc.subjectelectrostatic extrusionen
dc.subjectencapsulationen
dc.subjectinulinen
dc.subjectPterospartum tridentatumen
dc.titleCalcium-Alginate-Inulin Microbeads as Carriers for Aqueous Carqueja Extracten
dc.typearticle
dc.rights.licenseARR
dc.citation.epageE75
dc.citation.issue1
dc.citation.other81(1): E65-E75
dc.citation.rankM22
dc.citation.spageE65
dc.citation.volume81
dc.identifier.doi10.1111/1750-3841.13167
dc.identifier.pmid26613390
dc.identifier.scopus2-s2.0-84953807473
dc.identifier.wos000368133500010
dc.type.versionpublishedVersion


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