Identifying changes in chemical, interfacial and foam properties of β-lactoglobulin-sodium dodecyl sulphate mixtures

- Binding of surfactants to proteins determines the foam stability of the mixture.
- Interfacial, foam and bulk properties of BLG-SDS mixtures depend on the mixing ratio.
- At low molar ratio (<10), SDS significantly decreases protein foam stability.
- Electrospray ionization mass spectrometry can be used to identify BLG-SDS complexes.