Easy and inexpensive diffusion tests for detecting the assimilation of aromatic compounds by yeast-like fungi. Part II. Assimilation of aromatic acids.

Since our assimilation diffusion tests were successful for dihydroxyphenols, the same procedure was used for development of assimilation of benzoic, salicylic and phenylacetic acids by selected yeast-like fungi. The acids were found to be well oxidized. Positive results may be obtained after 1-2 days of incubation. Consumption of the substances studied was very low, about 0.8 mg for one test. The diffusion tests were proposed to choose highly active strains from culture collections.