Isolates A2 (non-flocculent) and A11 (flocculent) were grown in molasses medium containing 250 g/L of TRS, incubated at 30 C starting with an inoculum of 2% dry matter. The A2 strain produced 10.43% ethanol at 6 h (see Fig. 7), reaching a maximum value of 11.95% after 12 h. Considering that the concentration values obtained
in the ethanol industry after 10 h of incubation are about 10%; the values obtained with the A2 strain contribute to argue that its potential application to industrial level. The fermentative characteristics of A2 strain allowproducing high ethanol concentrations in a shorter time, thus decreasing the costs of the production process. The behavior of the non-flocculent A2 strain was faster, probably because its dispersed form facilitated the transfer of nutrients and products.