4.3.1.12	-10°C, rapid loss of activity during storage	
4.3.1.12	-20°C, OCD, Arch5, and OCD, C58, stable for several months without loss of activity	
4.3.1.12	4°C, 50% loss of activity under argon atmosphere within 3 days	
4.3.1.12	crude extracts can be frozen and thawed without significant loss of activity	
4.3.1.12	enzyme can be frozen and thawed repeatedly without loss of activity	
4.3.1.12	stable for at least 1 year when stored in sealed ampoules in argon atmosphere in liquid nitrogen