3.4.21.25 4 10 more than 80% of the initial activity after 20 h of incubation at 35°C between pH 4.0 and 10.0, rapid activity loss at pH 2 or pH 12 for 20 h at 35°C, casein substrate 670521 3.4.21.25 4 11.5 the enzyme shows more than 90% activity when incubated at pH 4.5 to 11.5 for 30 min 732844 3.4.21.25 6 11 80% of the activity remains after after incubation 95355 3.4.21.25 7 10 most stable between pH 7 and pH 10, after 1 h incubation at 60°C 95351 3.4.21.25 8 11 most stable between pH 8 and pH 11, after 2 h incubation at 25°C 95351 3.4.21.25 11 - 1 h incubation at 60°C, the immobilized enzyme is more stable than the soluble, keeps 80% of the activity 95347 3.4.21.25 11 - retains about 80% of the activity 95358