2.5.1.49	-15°C, 80% of the activity remains after storage for 6 months	
2.5.1.49	-20°C, can be stored without any loss of activity	
2.5.1.49	-20°C, can be stored without loss of catalytic activity	
2.5.1.49	-20°C, stable for at least 1 week, stable for at least 6 weeks if stabilized by addition of 20% glycerol	
2.5.1.49	-20°C, stable for at least 6 months