Rheology of Water-in-water emulsions: Caseinate-pectin and caseinatealginate systems

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dc.contributor.authorMaestro Garriga, Alicia
dc.contributor.authorGutiérrez, José M.
dc.contributor.authorSantamaría Hernández, Esther
dc.contributor.authorGonzález, Carmen
dc.date.accessioned2020-11-13T09:40:43Z
dc.date.available2021-07-23T05:10:17Z
dc.date.issued2020-07-23
dc.date.updated2020-11-13T09:40:43Z
dc.description.abstractConventional models developed for oil-water emulsions do not fit viscosity of caseinate-pectin and caseinatealginate water-in water emulsions, which is always lower than predicted, except for high viscosities of disperse phase. These models do not consider strong deformations, prevented by the high interfacial tension of oil-water interphases. The ultra-low interfacial tension of water-in-water emulsions facilitates the creation of interphase and very elongated droplets. Capron model considers interfacial tension, fitting results when the dispersed phase is the most viscous, but, for other cases, lower experimental values are obtained related to the shear-induced stratification. Even values below the stratification model are observed for some samples, related to the influence of the interphase in the viscosity of the emulsion. A model that takes into account the presence of a relatively thick interphase poor in both polymers is proposed. Intermediate structures between highly elongated and stratified fluids, with influence of interphase viscosity could explain results.
dc.format.extent13 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec704404
dc.identifier.issn0144-8617
dc.identifier.urihttps://hdl.handle.net/2445/172040
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1016/j.carbpol.2020.116799
dc.relation.ispartofCarbohydrate Polymers, 2020, vol. 249, p. 116799
dc.relation.urihttps://doi.org/10.1016/j.carbpol.2020.116799
dc.rightscc-by-nc-nd (c) Elsevier B.V., 2020
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es
dc.sourceArticles publicats en revistes (Enginyeria Química i Química Analítica)
dc.subject.classificationReologia
dc.subject.classificationDiagrames de fase
dc.subject.otherRheology
dc.subject.otherPhase diagrams
dc.titleRheology of Water-in-water emulsions: Caseinate-pectin and caseinatealginate systems
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion

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