Heat treatment of calcium alginate films obtained by ultrasonic atomizing: physicochemical characterization
dc.citation.title | Food Hydrocolloids | es |
dc.citation.volume | 51 | es |
dc.creator | Soazo, Marina del Valle | |
dc.creator | Báez, Germán David | |
dc.creator | Barboza, Andrea | |
dc.creator | Busti, Pablo Andrés | |
dc.creator | Rubiolo, Amelia Catalina | |
dc.creator | Verdini, Roxana Andrea | |
dc.creator | Delorenzi, Néstor Jorge | |
dc.date.accessioned | 2019-02-04T21:58:54Z | |
dc.date.available | 2019-02-04T21:58:54Z | |
dc.date.issued | 2015-10 | |
dc.description | Planar 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.fil | Fil: Soazo, Marina del Valle. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR–CONICET); Argentina. | es |
dc.description.fil | Fil: Báez, Germán David. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR–CONICET); Argentina. | es |
dc.description.fil | Fil: Barboza, Andrea. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina. | es |
dc.description.fil | Fil: Busti, Pablo Andrés. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina. | es |
dc.description.fil | Fil: Rubiolo, Amelia Catalina. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química (UNL-CONICET); Argentina. | es |
dc.description.fil | Fil: Verdini, Roxana Andrea. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR–CONICET); Argentina. | es |
dc.description.fil | Fil: Delorenzi, Néstor Jorge. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina. | es |
dc.description.sponsorship | Universidad Nacional de Rosario | es |
dc.description.sponsorship | Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina) | es |
dc.description.sponsorship | Santa Fe (Argentina : Provincia). Secretaría de Estado de Ciencia, Tecnología e Innovación de la Provincia de Santa Fe (SECTeI) | es |
dc.description.sponsorship | Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT) | es |
dc.format | application/pdf | |
dc.format.extent | 193-199 | es |
dc.identifier.issn | 0268-005X | es |
dc.identifier.uri | http://hdl.handle.net/2133/13886 | |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.publisherversion | http://dx.doi.org/doi.org/10.1016/j.foodhyd.2015.04.037 | es |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0268005X15002271?via%3Dihub | es |
dc.rights | openAccess | es |
dc.rights.holder | Soazo, Marina del Valle | es |
dc.rights.holder | Báez, Germán David | es |
dc.rights.holder | Barboza, Andrea | es |
dc.rights.holder | Busti, Pablo Andrés | es |
dc.rights.holder | Rubiolo, Amelia Catalina | es |
dc.rights.holder | Verdini, Roxana Andrea | es |
dc.rights.holder | Delorenzi, Néstor Jorge | es |
dc.rights.holder | Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas | es |
dc.rights.holder | Universidad Nacional del Litoral | es |
dc.rights.holder | Elsevier | es |
dc.rights.text | Atribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0) | es |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es | * |
dc.subject | Calcium alginate films | es |
dc.subject | Ultrasonic atomizing | es |
dc.subject | Heat treatment | es |
dc.subject | Physicochemical characterization | es |
dc.title | Heat treatment of calcium alginate films obtained by ultrasonic atomizing: physicochemical characterization | es |
dc.type | article | |
dc.type | artículo | |
dc.type | publishedVersion | |
dc.type.collection | articulo | |
dc.type.version | publishedVersion | es |
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