To investigate if Wa1F1-KT could act on susceptible yeast strains by hydrolyzing major cell wall components, its ability to digest the soluble β-1,3-glucan laminarin was assayed in comparison with Wa96603-KT, the KT produced by the Williopsis saturnus var. mrakii MUCL 41968 (Wm41968-KT), with known β-glucanase activity , and laminarinase. The results showed that all KTs could hydrolyze laminarin to an end product presenting similar relative mobility to the product of the laminarinase reaction (Figure 4).