Peptidase activity of the strain A 11 Amphibacillus alashanensis sp. Nov

Peptidase activity in strain A 11 Amphibacillus alashanensis sp. nov. on various substrates was studied. It is shown that the cultures possess highly subtilisin like, aminopeptidase activity. The observed specificity may reflect metabolic distinctive features of a particular bacteria species, indicating that hydrolysis of the same protein substrate can be performed by using different enzymatic machinery.Proteases are stable in a wide temperature range of 23 to 60оC and a pH from 6.80 to11.98. Peptidase activity varies depending on the substrate in the medium and cultivation time.