[Method of arrest and fixation of growth of yeast cultures in the postincubation period].

In order to arrest the growth and to fix yeast cultures during the postincubation period on natural and synthetic nutrient media, 10% oxalic acid can be used. The fixative is used at a concentration of 0.025 and 0.05 ml/l. Therefore, it induces on noticeable dilution of the suspension and allows precise measurements of the yeast weight.