Beta-lactoglobulin aggregates in foam films: effect of the concentration and size of the protein aggregates.
Single foam films made from mixtures of nonaggregated proteins and protein aggregates have been studied using a thin film balance apparatus. Their features (heterogeneity, stability and resistance to pressure change) are dependent on the aggregate size and on the ratio between nonaggregated proteins and protein aggregates. A phase diagram of these foam films has been drawn and a correlation of the structural properties of foam film and stability of real foams has been found. In particular, the formation of a gel-like network within the foam film coincides with the stability of the corresponding 3-D foams.
Rullier
Bénédicte
B
INRA, UR1268 Biopolymères Interactions Assemblages, F-44300 Nantes, France.
Axelos
Monique A V
MA
Langevin
Dominique
D
Novales
Bruno
B
D007782:Lactoglobulins / Q000737:chemistry*; D011489:Protein Denaturation; D055550:Protein Stability
D007782:Lactoglobulins