3'-ketolactose + H2O = 3-keto-beta-D-galactose + beta-D-glucose
3'-ketolactose + h2o = 3-keto-beta-d-galactose + beta-d-glucose
3'-ketolactose + H2O = 3-keto-beta-D-galactose + beta-D-glucose
3'-ketolactose + h2o = 3-keto-beta-d-galactose + beta-d-glucose