4.3.1.3	-10°C, 50% loss of activity after 4 months	
4.3.1.3	-20°C, 0.05 M potassium phosphate buffer, pH 7.0, no significant loss of activity for 2 years	
4.3.1.3	0-4°C, in a tube containing a few drops of chloroform	
4.3.1.3	0°C, 24 h, pH 3.0 or pH 12.0, complete loss of activity	
4.3.1.3	0°C, 24 h, pH 7.0-10.0, enzyme retains full activity	
4.3.1.3	0°C, complete loss of activity within 1 week	
4.3.1.3	2°C, 0.1 M potassium phosphate, pH 7.2, 0.1 mM MnCl2 saturated with chloroform, stable for 9 months without loss of activity	
4.3.1.3	37°C, enzyme in solution: 50% loss of activity after 9.5 days, microencapsulated enzyme: 50% loss of activity after 15 days	
4.3.1.3	4°C, enzyme in solution: 27% loss of activity after 21 days, and 60% loss of activity after 77 days, microencapsulated enzyme: 5% loss of activity after 21 days, and less than 50% loss of activity after 77 days	
4.3.1.3	5°C, crystalline enzyme in 3.5 M ammonium sulfate, stable for 1 year