Dynamic emulsification and catastrophic ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
Dynamic emulsification and catastrophic phase inversion of lecithin based emulsions
Auteur(s) :
Thakur, Rajeev Kumar [Auteur correspondant]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Delaplace, Guillaume [Auteur correspondant]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Aubry, J.M. [Auteur]
Centre National de la Recherche Scientifique [CNRS]
Villette, Claire [Auteur]
Centre National de la Recherche Scientifique [CNRS]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Delaplace, Guillaume [Auteur correspondant]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Aubry, J.M. [Auteur]
Centre National de la Recherche Scientifique [CNRS]
Villette, Claire [Auteur]
Centre National de la Recherche Scientifique [CNRS]
Laboratoire de Génie des Procédés et Technologie Alimentaires [LGPTA]
Titre de la revue :
Colloids and Surfaces A: Physicochemical and Engineering Aspects
Éditeur :
Elsevier
Date de publication :
2008
ISSN :
0927-7757
Mot(s)-clé(s) :
mayonnaise
Mot(s)-clé(s) en anglais :
oil-in-water emulsion
phase inversion
lecithin
emulsification
Emulsification; Lecithin; Mayonnaise; Oil-in-water emulsion; Phase inversion
phase inversion
lecithin
emulsification
Emulsification; Lecithin; Mayonnaise; Oil-in-water emulsion; Phase inversion
Discipline(s) HAL :
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences du Vivant [q-bio]
Sciences de l'ingénieur [physics]/Génie des procédés
Sciences du Vivant [q-bio]
Sciences de l'ingénieur [physics]/Génie des procédés
Résumé en anglais : [en]
In emulsification phase inversion is induced by several parameters like temperature, salt concentration, fraction of oil or water and energy input. In this work phase inversion of a sunflower oil–lecithin–water emulsion ...
Lire la suite >In emulsification phase inversion is induced by several parameters like temperature, salt concentration, fraction of oil or water and energy input. In this work phase inversion of a sunflower oil–lecithin–water emulsion system was induced by the variation of water volume fraction (fw), called as catastrophic inversion, in a laboratory scale mixing tank. For this purpose two sets of dynamic emulsification were performed: (i) fw was decreased (0.5–0.1) and (ii) fw was increased (0.1–0.7). Hysteresis in phase inversion under dynamic condition was observed compared to direct emulsification and the degree of hysteresis seemed to depend on how the fw was varied, i.e. 0.5–0.1 or 0.1–0.7. However, inversion point depended on salt concentration which was used as one of the formulation parameters to place an emulsion on formulation-composition map (HLD versus fw). Such map with the phase equilibrium behavior and colloidal interactions seems to be useful to explain the mechanism of catastrophic phase inversion under dynamic conditions. This study showed also that the dynamic emulsification lead to incorporate higher fraction of the dispersed phase (more than 82% volume) which is not possible with the direct emulsification. Moreover dynamic emulsification can be a useful protocol to prepare stable emulsions with smaller droplets.Lire moins >
Lire la suite >In emulsification phase inversion is induced by several parameters like temperature, salt concentration, fraction of oil or water and energy input. In this work phase inversion of a sunflower oil–lecithin–water emulsion system was induced by the variation of water volume fraction (fw), called as catastrophic inversion, in a laboratory scale mixing tank. For this purpose two sets of dynamic emulsification were performed: (i) fw was decreased (0.5–0.1) and (ii) fw was increased (0.1–0.7). Hysteresis in phase inversion under dynamic condition was observed compared to direct emulsification and the degree of hysteresis seemed to depend on how the fw was varied, i.e. 0.5–0.1 or 0.1–0.7. However, inversion point depended on salt concentration which was used as one of the formulation parameters to place an emulsion on formulation-composition map (HLD versus fw). Such map with the phase equilibrium behavior and colloidal interactions seems to be useful to explain the mechanism of catastrophic phase inversion under dynamic conditions. This study showed also that the dynamic emulsification lead to incorporate higher fraction of the dispersed phase (more than 82% volume) which is not possible with the direct emulsification. Moreover dynamic emulsification can be a useful protocol to prepare stable emulsions with smaller droplets.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Non spécifiée
Vulgarisation :
Non
Références liée(s) :
Établissement(s) :
CNRS
Université de Lille
ENSCL
INRA
Université de Lille
ENSCL
INRA
Collections :
Date de dépôt :
2022-02-01T13:40:12Z