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Water-in-oil-in-water double emulsions as protective carriers for Sambucus nigra l. coloring systems

2022Artigo científico Acesso aberto
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dc.contributor.authorTeixeira, Liandra Gracher
dc.contributor.authorRezende, Stephany
dc.contributor.authorFernandes, Ângela
dc.contributor.authorFernandes, Isabel P.
dc.contributor.authorBarros, Lillian
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorLeimann, Fernanda Vitória
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorBarreiro, M.F.
dc.date.accessioned2022-02-21T15:50:39Z
dc.date.available2022-02-21T15:50:39Z
dc.date.issued2022
dc.description.abstractThe use of natural colorants is needed to overcome consumer concerns regarding synthetic food colorants0 safety. However, natural pigments have, in general, poor stability against environmental stresses such as temperature, ionic strength, moisture, light, and pH, among others. In this work, water-in-oil-in-water (W1/O/W2) emulsions were used as protective carriers to improve color stability of a hydrophilic Sambucus nigra L. extract against pH changes. The chemical system comprised water and corn oil as the aqueous and oil phases, respectively, and polyglycerol polyricinoleate (PGPR), Tween 80, and gum Arabic as stabilizers. The primary emulsion was prepared using aW1/O ratio of 40/60 (v/v). For the secondary emulsion,W1/O/W2, different (W1/O)/W2 ratios were tested with the 50/50 (v/v) formulation presenting the best stability, being selected as the coloring system to test in food matrices of different pH: natural yogurt (pH 4.65), rice drink (pH 6.01), cow milk (pH 6.47), and soy drink (pH 7.92). Compared to the direct use of the extract, the double emulsion solution gave rise to higher color stability with pH change and storage time, as corroborated by visual and statistical analysis.pt_PT
dc.description.sponsorshipFCT/MCTES for financial support to CIMO (UIDB/00690/2020). National funding by FCTFoundation for Science and Technology, through the institutional scientific employment programcontract of A. Fernandes, I. Fernandes, and L. Barros. Valor Natural project (Project Norte-01-0247- FEDER-024479).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationTeixeira, Liandra G.; Rezende, Stephany; Fernandes, Ângela; Fernandes, Isabel P.; Barros, Lillian; Barreira, João C. M.; Leimann, Fernanda V.; Ferreira, Isabel C.F.R.; Barreiro, M.F. (2022). Water-in-oil-in-water double emulsions as protective carriers for sambucus nigra l. coloring systems. Molecules. ISSN 1420-3049, 27: 2, p. 1-13pt_PT
dc.identifier.doi10.3390/molecules27020552pt_PT
dc.identifier.issn1420-3049
dc.identifier.urihttp://hdl.handle.net/10198/25086
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationMountain Research Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSambucus nigra L. extractpt_PT
dc.subjectNatural colorantspt_PT
dc.subjectColor stabilitypt_PT
dc.subjectDouble emulsionspt_PT
dc.titleWater-in-oil-in-water double emulsions as protective carriers for Sambucus nigra l. coloring systemspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.citation.issue2pt_PT
oaire.citation.startPage552pt_PT
oaire.citation.titleMoleculespt_PT
oaire.citation.volume27pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameTeixeira
person.familyNameRezende
person.familyNameFernandes
person.familyNameFernandes
person.familyNameBarros
person.familyNameBarreira
person.familyNameLeimann
person.familyNameFerreira
person.familyNameBarreiro
person.givenNameLiandra Gracher
person.givenNameStephany
person.givenNameÂngela
person.givenNameIsabel P.
person.givenNameLillian
person.givenNameJoão C.M.
person.givenNameFernanda Vitória
person.givenNameIsabel C.F.R.
person.givenNameFilomena
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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