Some reports have established the activating effect of bovine β-lactoglobulin (β-lg) on Kluyveromyces lactis’ β-galactosidase (KLβ-gal) activity, suggesting that the interaction between β-lg and KLβ-gal could be responsible for this effect. The aim of this work was to study the interaction between β-lg and KLβ-gal in order to determine the...