1955 年 75 巻 2 号 p. 149-151
When Aspergillus orysae is cultured in a medium containing 0.15-3.0mg. of p-aminobenzoic acid per 50cc. of the medium, the production of amylase was found to increase the most. The same experiments were carried out with compounds structurally related to p-aminobenzoic acid, such as o- and m-aminobenzoic, p-nitrobenzoic, and sulfanilic acids, and a few derivatives of p-aminobenzoic acid, but no better result was obtained.