Figure 2: IFT isotherms (22°C) of canola oil vs. aqueous SLES solution (STEOL® CS-230). Downward shift of SLES CMC in the presence of CF yeast exo-protein in both versions of the test: with (1:1) mixture of surfactant with the yeast extract CF protein synergist (red graph), and in the system with a permanent protein synergist content of 1200 ppmCF along the entire isotherm (blue graph).