Advantages of using the evaporation are not only to remove
inhibiting volatile compounds, such as furfural, and acetic acid,
but also that glucose concentration in the hydrolyzate can be regulated
(Taherzadeh and Karimi, 2011). (Dawson and Boopathy,
2007) showed that the production of ethanol from post-harvest
sugarcane residue could take up to 12 days for the fermenting
yeast to produce the maximum ethanol if the evaporation was
not used. Moreover, the maximum concentration of ethanol produced
from this study is only 336 mg/L probably due to extreme
dilution of the obtained hydrolyzate