Kinetics for describing the creaming of protein-stabilized O/W emulsions by multiple light scattering

In the present work, new kinetics to describe the creaming stability of oil-in-water emulsions determined by backscattering measurements (BS) is proposed. The emulsions assayed exhibited a different backscattering profiles regarding creaming destabilization, hyperbolic and sigmoid one. Hyperbolic be...

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Detalles Bibliográficos
Autores: Panizzolo, Lius Alberto, Mussio, Luis Eduardo, Añon, Maria Cristina
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/10807
Acceso en línea:http://hdl.handle.net/11336/10807
Access Level:acceso abierto
Palabra clave:Emulsions
Proteins
Creaming
Kinetics
Multiple light scattering
https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
Descripción
Sumario:In the present work, new kinetics to describe the creaming stability of oil-in-water emulsions determined by backscattering measurements (BS) is proposed. The emulsions assayed exhibited a different backscattering profiles regarding creaming destabilization, hyperbolic and sigmoid one. Hyperbolic behavior can be described by a second order kinetics, where kh could be equaled to a rate constant that describes the creaming process and its values would indicate the stability of emulsions. While for the sigmoid BS pattern, kinetics with two terms, is adequate to describe the creaming process in contrast to kinetics previously reported in the literature. The kh value has the same meaning as before, and ks indicates the delaying effect on the creaming rate.