Placental acid hydrolase purification on concanavalin A-sepharose

Crude human placental extract was chromatographed on concanavalin A-Sepharose. Using a single procedure, 20- to over 300-fold purification of six acid glycohydrolases was achieved, in most cases with a good yield. Improved yield of individual enzymes could be achieved by modifications of the method of elution. The capacity of concanavalin A-Sepharose to bind glycohydrolases from placenta was very large, and will provice a useful procedure for the large-scale purification of the human enzymes.