3.3. The saccharification and fermentation process
During the experiments the saccharification progress was
checked by measuring the sugar content in the juice being
saccharified after the addition of glucoamylase. The sugar
content of the filtered liquid samples was measured by an
electronic saccharometer, Type GPR 11-37 of INDEX Instruments,
with temperature compensation. The sugar content in
the juice after saccharification was 36 g kg1 based on dry
mater and the residual sugar content at the end of the
fermentation process was 13 g kg1
. The fermentation was
terminated on the third day, when the process was coming to
an end indicated by the strongly reduced CO2 release from the
fermentation tank. The pH of the solution after fermentation
was in the range of 4.3e5.1.