4.1.1.12	37	-	half life of activity in immobilized cells: 100 days	3959	
4.1.1.12	50	-	30% loss of activity after 15 min, 75% loss of activity after 40 min	3965	
4.1.1.12	50	-	37% loss of activity after 15 min, 85% loss of activity after 40 min	3965