the michaelis constant and stability of this immobilized-enzyme system are compared with those of the enzyme either in the native form or immobilized as a dynamically formed gel layer on an ultrafiltration membrane , as previously described by us [ drioli , gianfreda , palescandolo & scardi ( 1975 ) biotechnol , bioeng , 17 , 1365-1367 ] .
C0014444
immobilized-enzyme
C0014442
enzyme