Yield stress and elasticity of aqueous foams from protein and surfactant solutions - The role of continuous phase viscosity and interfacial properties

- We discuss the influence of liquid phase viscosity on yield stress and storage modulus of aqueous foams.
- We investigate the correlation between foam rheology and interfacial rheology.
- Higher interfacial elasticity increases yield stress and storage modulus of the foams.
- Aggregation of proteins lowers interfacial but increases foam elastic modulus.