3.1.1.41 25 - - 170675 3.1.1.41 25 - 1 month, less than 20% loss of activity 170666 3.1.1.41 25 - unstable above 170675 3.1.1.41 30 - 15 min, 60% loss of activity 170672 3.1.1.41 30 - pH 7.0, stable for at least 1 month 170673 3.1.1.41 40 - purified recombinant enzyme, pH 7.0, stable up to, loss of 10% activity after 120 h 729073 3.1.1.41 45 - 50% loss of activity after 1 h 649397 3.1.1.41 50 - 30 min, 90% loss of activity 170668 3.1.1.41 50 - immobilized and free enzyme fully stable 671502 3.1.1.41 50 - irreversible inactivation above 170665