1.13.11.3 5 - stable for long periods 439482 1.13.11.3 20 50 purified enzyme, 50 min, pH 7.5, relatively stable 725655 1.13.11.3 42 - 1 h, stable below 439502 1.13.11.3 50 - 1 h, unstable above 439502 1.13.11.3 50 - 3 min, inactivation 439482 1.13.11.3 50 - pH 8.5, 90 min, stable 439501 1.13.11.3 60 - 5 min, about 5% loss of activity 439483 1.13.11.3 60 - 5 min, stable 439488 1.13.11.3 60 - half-life is 40 min 685485 1.13.11.3 60 - immobilized enzyme shows slightly enhanced stability 439485