of the anions , azide , f , so ( 3 ) , so ( 4 ) , s ( 2 ) o ( 3 ) , moo ( 4 ) , and wo ( 4 ) showed an excitant effect . p-chloromercuribenzoic acid and sodium iodoacetate were inhibitory , whereas cysteine , reduced glutathione , thiourea , beta-mercaptoethanol , and sodium glycerophosphate afforded protection to enzyme activity . alpha-amylase was fairly resistant to edta treatment at 30 degrees c , but heating at 90 degrees c in presence of edta resulted in the complete loss of enzyme activity , which could be recovered partially by the addition of cu and fe but not by the addition of ca or any other divalent ions .
C0003075
anions
C0016327
f