Measurement of the gassing power of bakers' yeast: correlation between the dough volume and the incubation time

an empirical equation is proposed to correlate the dough volume and the incubation time during cylinder tests using thin flour dough carried out to evaluate the gassing power of compressed yeast. the above equation permitted to correlate the gassing power of the yeast and the proof time, as well as to calculate the specific rate of the dough volume variation at any time. it provided more information regarding the fermentation power of the yeast than the sole value of its gas-producing power. a physical interpretation of the proposed equation is presented.