can increase the production of ethanol by using soybean molasses
in a more concentrated form, thus avoiding dilution, as our first set
of experiments showed that fermentation was not inhibited by the
presence of higher concentrations of sugars. However, in conjunction
with a process to produce ethanol from sugarcane molasses, in
which excess energy is generated by bagasse, the optimal process
should be evaluated within a matrix of energy that involves two
processes.
Machado [9] studied the fermentation of soybean molasses and
obtained an ethanol yield of 55.60%, compared to a 51.1% yield relative
to glucose, by fermentation with S. cerevisiae at pH 6.0 and
30 ◦C. In addition, the author studied the addition of 0.1 g/L MgSO4
to the substrate and acid hydrolysis, concluding that, despite the
large amount of sugars available for hydrolysis, higher conversion
was observed for the soybean molasses that contained magnesium
sulfate