Beta-lactoglobulin aggregates in foam films: correlation between foam films and foaming properties.
Single foam films made from aqueous protein solutions containing aggregates have been studied using a thin film balance apparatus. When the solutions are free from non-aggregated proteins, the films are either fluid or gelified, depending on the aggregate size. When non-aggregated proteins are present, they adsorb at the film surfaces, acting as anchors for the aggregates, and ultimately leading to stable foam films if the amount of non-aggregated proteins is sufficient. In all cases, gel-like films are more stable than fluid films and there is a good correlation between foam and film stability.
Rullier
Bénédicte
B
Institut National de la Recherche Agronomique, UR1268 Biopolymères, Interactions, Assemblages, INRA, Equipe Interfaces Systèmes Dispersés, Rue de la Géraudière, 44316 Nantes Cedex 03, France.
Axelos
Monique A V
MA
Langevin
Dominique
D
Novales
Bruno
B
D000327:Adsorption; D005782:Gels; D007782:Lactoglobulins / Q000737:chemistry*; D008567:Membranes, Artificial; D055503:Protein Multimerization; D012996:Solutions; D055682:Viscoelastic Substances / Q000737:chemistry*
D005782:Gels; D007782:Lactoglobulins; D008567:Membranes, Artificial; D012996:Solutions; D055682:Viscoelastic Substances