Heat treatment of calcium alginate films obtained by ultrasonic atomizing: physicochemical characterization

dc.citation.titleFood Hydrocolloidses
dc.citation.volume51es
dc.creatorSoazo, Marina del Valle
dc.creatorBáez, Germán David
dc.creatorBarboza, Andrea
dc.creatorBusti, Pablo Andrés
dc.creatorRubiolo, Amelia Catalina
dc.creatorVerdini, Roxana Andrea
dc.creatorDelorenzi, Néstor Jorge
dc.date.accessioned2019-02-04T21:58:54Z
dc.date.available2019-02-04T21:58:54Z
dc.date.issued2015-10
dc.descriptionPlanar films of calcium alginate were obtained using an ultrasonic atomizing device. Sodium alginate solutions of 0.6% and 0.9% (w/v) were nebulized with calcium gluconolactate solutions (gelling agent) of 0, 1, 2 and 3% (w/v) at a flow rate of 0.3 mL min−1 for 20 min. After drying, thickness and mechanical properties were determined. In view of the results of mechanical properties, manageability and flexibility, calcium alginate films obtained using 0.9% sodium alginate and 2% calcium gluconolactate were selected as “optimum dry film” samples. These samples were cut into rectangular pieces and heated at 180 °C for 0, 4, 8, 12, 20 and 24 min. Thickness, mechanical and optical properties, differential scanning calorimetry (DSC) thermograms, Fourier transform infrared spectroscopy (FTIR) spectra, and scanning electron microscopy (SEM) micrographs were analyzed in order to characterize the physicochemical properties of heat-treated samples. The heat treatment produced thickness reduction, a yellow ochre color development and an increase in the brittleness of the films. DSC, FTIR and SEM studies suggested that heat treatment produced further dehydration of dry films and thermal dehydration–degradation of alginate macromolecules.es
dc.description.filFil: Soazo, Marina del Valle. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR–CONICET); Argentina.es
dc.description.filFil: Báez, Germán David. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR–CONICET); Argentina.es
dc.description.filFil: Barboza, Andrea. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina.es
dc.description.filFil: Busti, Pablo Andrés. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina.es
dc.description.filFil: Rubiolo, Amelia Catalina. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química (UNL-CONICET); Argentina.es
dc.description.filFil: Verdini, Roxana Andrea. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR–CONICET); Argentina.es
dc.description.filFil: Delorenzi, Néstor Jorge. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina.es
dc.description.sponsorshipUniversidad Nacional de Rosarioes
dc.description.sponsorshipConsejo Nacional de Investigaciones Científicas y Técnicas (Argentina)es
dc.description.sponsorshipSanta Fe (Argentina : Provincia). Secretaría de Estado de Ciencia, Tecnología e Innovación de la Provincia de Santa Fe (SECTeI)es
dc.description.sponsorshipAgencia Nacional de Promoción Científica y Tecnológica (ANPCyT)es
dc.formatapplication/pdf
dc.format.extent193-199es
dc.identifier.issn0268-005Xes
dc.identifier.urihttp://hdl.handle.net/2133/13886
dc.language.isoenges
dc.publisherElsevieres
dc.relation.publisherversionhttp://dx.doi.org/doi.org/10.1016/j.foodhyd.2015.04.037es
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0268005X15002271?via%3Dihubes
dc.rightsopenAccesses
dc.rights.holderSoazo, Marina del Vallees
dc.rights.holderBáez, Germán Davides
dc.rights.holderBarboza, Andreaes
dc.rights.holderBusti, Pablo Andréses
dc.rights.holderRubiolo, Amelia Catalinaes
dc.rights.holderVerdini, Roxana Andreaes
dc.rights.holderDelorenzi, Néstor Jorgees
dc.rights.holderUniversidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticases
dc.rights.holderUniversidad Nacional del Litorales
dc.rights.holderElsevieres
dc.rights.textAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)es
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es*
dc.subjectCalcium alginate filmses
dc.subjectUltrasonic atomizinges
dc.subjectHeat treatmentes
dc.subjectPhysicochemical characterizationes
dc.titleHeat treatment of calcium alginate films obtained by ultrasonic atomizing: physicochemical characterizationes
dc.typearticle
dc.typeartículo
dc.typepublishedVersion
dc.type.collectionarticulo
dc.type.versionpublishedVersiones

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