These compounds have a strong inhibiting effect on fermentation
with Saccharomyces cerevisiae, specially acetic acid
and furfural which decrease the specific velocity of growth of
microorganisms and, therefore, the volumetric ethanol yield
[42–44]. Therefore, the implementation of an additional step
of neutralization of pretreated materials in very important to
mitigate the effect of these inhibiting compounds and thus improve
the ethanol yield. Monomeric sugars, produced by hydrolysis
of cellulose and hemicelluloses, like glucose, xylose and
arabinose were also detected.
These compounds have a strong inhibiting effect on fermentationwith Saccharomyces cerevisiae, specially acetic acidand furfural which decrease the specific velocity of growth ofmicroorganisms and, therefore, the volumetric ethanol yield[42–44]. Therefore, the implementation of an additional stepof neutralization of pretreated materials in very important tomitigate the effect of these inhibiting compounds and thus improvethe ethanol yield. Monomeric sugars, produced by hydrolysisof cellulose and hemicelluloses, like glucose, xylose andarabinose were also detected.
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