A STUDY ON PREPARATION OF GLUCOAMYLASE BY IRRADIATION

A study on preparation of industrial glucoamylase irradiated by Co-60 gamma - ray showed that an abvious change took Place in the extraviole t absorption spectrum and the pH - value of the enzyme solution and th e activity of the enzyme preparation was much more resistant to irradi ation than that of microbes contained in the preparation. The result i ndicates that irradiated glucoamylase preparation is not only favourab le to activity preservation but also is improved in the hygienic quali ty of products. A comparison of the various properties of irradiated e nzyme preparation with those of unirradiated one has proved that irrad iation does not change the normal application of glucoamylase preparat ion.