Artículo

Zazzali, I.; Aguirre Calvo, T.R.; Pizones Ruíz-Henestrosa, V.M.; Santagapita, P.R.; Perullini, M."Effects of pH, extrusion tip size and storage protocol on the structural properties of Ca(II)-alginate beads" (2019) Carbohydrate Polymers. 206:749-756
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Abstract:

The Ca(II)-alginate beads were formulated changing some synthesis variables: pH (3.8–6.8), extrusion tip size (0.25–0.50 mm) and washing/storage protocol, to evaluate possible implications in the structural properties of beads, which are critical to scale and standardize their production at industrial level. Regardless of the macro- (diameter, area, perimeter and roundness, studied by image analysis) and micro-structural (size, density and interconnectivity of rods assessed by SAXS) parameters analyzed, there are no effects related to the washing and storage protocol employed for any synthesis conditions. Structural parameters are only influenced by the synthesis pH. Both washing protocol and extrusion tip size effects on the consolidation of the alginate network are negligible at each pH value. Besides, none of the synthesis variables affected the availability of water within the beads as assessed by diffusion coefficient and water activity measurements. A model, relating chain-chain interactions and polymer chain packing, is proposed. © 2018 Elsevier Ltd

Registro:

Documento: Artículo
Título:Effects of pH, extrusion tip size and storage protocol on the structural properties of Ca(II)-alginate beads
Autor:Zazzali, I.; Aguirre Calvo, T.R.; Pizones Ruíz-Henestrosa, V.M.; Santagapita, P.R.; Perullini, M.
Filiación:Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamentos de Industrias y Química Orgánica, Buenos Aires, Argentina
CONICET-Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ), Buenos Aires, Argentina
Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física, Buenos Aires, Argentina
CONICET-Universidad de Buenos Aires, Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE), Buenos Aires, Argentina
Palabras clave:Alginate; Diffusion coefficient; Encapsulation; Microstructure; SAXS; Water content and activity; Alginate; Diffusion; Encapsulation; Extrusion; Microstructure; Structural properties; Washing; Alginate beads; Chain-chain interactions; Interconnectivity; Micro-structural; Polymer chain packing; SAXS; Structural parameter; Synthesis conditions; pH effects
Año:2019
Volumen:206
Página de inicio:749
Página de fin:756
DOI: http://dx.doi.org/10.1016/j.carbpol.2018.11.051
Handle:http://hdl.handle.net/20.500.12110/paper_01448617_v206_n_p749_Zazzali
Título revista:Carbohydrate Polymers
Título revista abreviado:Carbohydr Polym
ISSN:01448617
CODEN:CAPOD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v206_n_p749_Zazzali

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Citas:

---------- APA ----------
Zazzali, I., Aguirre Calvo, T.R., Pizones Ruíz-Henestrosa, V.M., Santagapita, P.R. & Perullini, M. (2019) . Effects of pH, extrusion tip size and storage protocol on the structural properties of Ca(II)-alginate beads. Carbohydrate Polymers, 206, 749-756.
http://dx.doi.org/10.1016/j.carbpol.2018.11.051
---------- CHICAGO ----------
Zazzali, I., Aguirre Calvo, T.R., Pizones Ruíz-Henestrosa, V.M., Santagapita, P.R., Perullini, M. "Effects of pH, extrusion tip size and storage protocol on the structural properties of Ca(II)-alginate beads" . Carbohydrate Polymers 206 (2019) : 749-756.
http://dx.doi.org/10.1016/j.carbpol.2018.11.051
---------- MLA ----------
Zazzali, I., Aguirre Calvo, T.R., Pizones Ruíz-Henestrosa, V.M., Santagapita, P.R., Perullini, M. "Effects of pH, extrusion tip size and storage protocol on the structural properties of Ca(II)-alginate beads" . Carbohydrate Polymers, vol. 206, 2019, pp. 749-756.
http://dx.doi.org/10.1016/j.carbpol.2018.11.051
---------- VANCOUVER ----------
Zazzali, I., Aguirre Calvo, T.R., Pizones Ruíz-Henestrosa, V.M., Santagapita, P.R., Perullini, M. Effects of pH, extrusion tip size and storage protocol on the structural properties of Ca(II)-alginate beads. Carbohydr Polym. 2019;206:749-756.
http://dx.doi.org/10.1016/j.carbpol.2018.11.051