[Substrate inhibition and Candida tropicalis growth limitation by phenol in continuous chemostat and pH-stat cultures].

The aim of this work was to investigate phenol decomposition by Candida tropicalis 29-10 adapted to phenol as a sole source of carbon and energy, and to elucidate the nature of resistance of continuous cultures decomposing phenol in processes with two types of control, viz. in chemostat and in pH-stat. The results suggest the resistance of the pH-stat regime of microbial cultivation during substrate inhibition. A region of instability in the chemostat cultivation has been determined when the yeast growth was inhibited with phenol.