3.4.23.23 3 5 - 743030 3.4.23.23 3 6 38°C, 8 days, more than 90% of the activity retained 30673 3.4.23.23 3 6 highest stability 30679 3.4.23.23 3 6 stable 30642 3.4.23.23 3 7 acid protease C, highest stability at pH 4.0 30649 3.4.23.23 3.3 3.8 the enzyme remains stable after 1 h at pH 3.3-3.6. The activity drops to about 60% and about 50% after 1 h at pH 3.7 and 3.8, respectively 752456 3.4.23.23 4 4.2 highest thermal stability 30659 3.4.23.23 4 8 acid protease D, highest stability at pH 5.0 30649 3.4.23.23 5 - 60°C, 10 min, highest stability 30668