Artículo

Huck-Iriart, C.; Montes-de-Oca-Ávalos, J.; Herrera, M.L.; Candal, R.J.; Pinto-de-Oliveira, C.L.; Linares-Torriani, I. "New insights about flocculation process in sodium caseinate-stabilized emulsions" (2016) Food Research International. 89:338-346
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Abstract:

Flocculation process was studied in emulsions formulated with 10 wt.% sunflower oil, 2, 5 or 7.5 wt.% NaCas, and with or without addition of sucrose (0, 5, 10, 15, 20 or 30 wt.%). Two different processing conditions were used to prepare emulsions: ultraturrax homogenization or further homogenization by ultrasound. Emulsions with droplets with diameters above (coarse) or below (fine) 1 μm were obtained. Emulsions were analyzed for droplet size distribution by static light scattering (SLS), stability by Turbiscan, and structure by confocal laser scanning microscopy (CLSM) and small angle X-ray scattering (SAXS). SAXS data were fitted by a theoretical model that considered a system composed of poly dispersed spheres with repulsive interaction and presence of aggregates. Flocculation behavior was caused by the self-assembly properties of NaCas, but the process was more closely related to interfacial protein content than micelles concentration in the aqueous phase. The results indicated that casein aggregation was strongly affected by disaccharide addition, hydrophobic interaction of the emulsion droplets, and interactions among interfacial protein molecules. The structural changes detected in the protein micelles in different environments allowed understanding the macroscopic physical behavior observed in concentrated NaCas emulsions. © 2016 Elsevier Ltd

Registro:

Documento: Artículo
Título:New insights about flocculation process in sodium caseinate-stabilized emulsions
Autor:Huck-Iriart, C.; Montes-de-Oca-Ávalos, J.; Herrera, M.L.; Candal, R.J.; Pinto-de-Oliveira, C.L.; Linares-Torriani, I.
Filiación:Escuela de Ciencia y Tecnología, CONICET, Universidad Nacional de San Martín (UNSAM), Campus Miguelete, 25 de Mayo y Francia, San Martín, Provincia de Buenos Aires 1650, Argentina
Instituto de Tecnología en Polímeros y Nanotecnología (ITPN), Universidad de Buenos Aires (UBA), CONICET, Facultad de Ingeniería, Las Heras 2214, Buenos Aires, C1127AAQ, Argentina
Departamento de Química Inorgánica, Analítica y Química Física (DQIAQF), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Piso 3, Buenos Aires, C1428EHA, Argentina
Instituto de Investigación e Ingeniería Ambiental, CONICET, Universidad Nacional de San Martín (UNSAM), Campus Miguelete, 25 de Mayo y Francia, San Martín, Provincia de Buenos Aires 1650, Argentina
Instituto de Física, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
Instituto de Física “Gleb Wataghin”, Universidade Estadual de Campinas, Campinas, SP, Brazil
Palabras clave:Disaccharides; Emulsions; Flocculation; SAXS; Sodium caseinate; Turbiscan; Drops; Emulsification; Emulsions; Hydrophobicity; Light scattering; Micelles; Proteins; Self assembly; Sodium; Sunflower oil; X ray scattering; Confocal laser scanning microscopy; Disaccharides; Droplet size distributions; Hydrophobic interactions; SAXS; Sodium caseinate; Static Light Scattering; Turbiscan; Flocculation
Año:2016
Volumen:89
Página de inicio:338
Página de fin:346
DOI: http://dx.doi.org/10.1016/j.foodres.2016.08.026
Título revista:Food Research International
Título revista abreviado:Food Res. Int.
ISSN:09639969
CODEN:FORIE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09639969_v89_n_p338_HuckIriart

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Citas:

---------- APA ----------
Huck-Iriart, C., Montes-de-Oca-Ávalos, J., Herrera, M.L., Candal, R.J., Pinto-de-Oliveira, C.L. & Linares-Torriani, I. (2016) . New insights about flocculation process in sodium caseinate-stabilized emulsions. Food Research International, 89, 338-346.
http://dx.doi.org/10.1016/j.foodres.2016.08.026
---------- CHICAGO ----------
Huck-Iriart, C., Montes-de-Oca-Ávalos, J., Herrera, M.L., Candal, R.J., Pinto-de-Oliveira, C.L., Linares-Torriani, I. "New insights about flocculation process in sodium caseinate-stabilized emulsions" . Food Research International 89 (2016) : 338-346.
http://dx.doi.org/10.1016/j.foodres.2016.08.026
---------- MLA ----------
Huck-Iriart, C., Montes-de-Oca-Ávalos, J., Herrera, M.L., Candal, R.J., Pinto-de-Oliveira, C.L., Linares-Torriani, I. "New insights about flocculation process in sodium caseinate-stabilized emulsions" . Food Research International, vol. 89, 2016, pp. 338-346.
http://dx.doi.org/10.1016/j.foodres.2016.08.026
---------- VANCOUVER ----------
Huck-Iriart, C., Montes-de-Oca-Ávalos, J., Herrera, M.L., Candal, R.J., Pinto-de-Oliveira, C.L., Linares-Torriani, I. New insights about flocculation process in sodium caseinate-stabilized emulsions. Food Res. Int. 2016;89:338-346.
http://dx.doi.org/10.1016/j.foodres.2016.08.026