Abstract
The distribution of activity hydrolyzing acyl amino acids was investigated, so as to obtain an advantageous enzyme source for the resolution of amino acids. For this purpose, a number of molds such as Aspergillus, Penicillium, Rhizopus, Mucor, Abshidia, and Cunninghamella were cultivated on wheat bran and the extracts were tested in relation to their hydrolytic activity of acyl amino acids. Although almost all molds yielded acylase more or less, high activity was shown in cases of Aspergillus and Penicillium. As one. of the most suitable strains, Aspergillus oryzae No. 9 was chosen and the optimum cultural conditions for acylase formation was also inveitigated.
