The present paper describes the screening and isolation of an organic solvent-stable protease producer can produce
an extraordinary high yield of protease in the simple opti-mized culture medium. Its crude protease is not only stable
in high content (50%, v/v) of hydrophobic solvents but also in several hydrophilic solvents at the same concentration.
Furthermore, the enzymatic synthesis of aspartame precur-sor in the presence of 50% DMSO by this protease was
investigated.