Fig. 1.

Profiles of β-Galactosidase activity and protein obtained after gel filtration (A). Chromatography of 2.4 mg of a crude extract from K. lactis. (B) Chromatography of 3mg of partially purified extracts from Maxilact LX-5000. The profile of molecular weight standards used for calibration are shown. Absorbance values of standards are multiplied by 100. Fraction showing the peak of maximum lactase activity was estimated to correspond to a molecular weight of 250 kDa in the crude extract and 260 kDa in Maxilact LX-5000.