For each medium, alcoholic fermentation was complete and
although its duration gradually increased, it did not seem to be
notably affected by acetic acid, even at 2 g/l (Table 1). As soon as
acetic acid is added to grape juice, alcoholic fermentation leads
to a decrease in the concentration of acetic acid relative to the
starting juice for the treatment considered. The amount of acetic
acid eliminated during alcoholic fermentation increases monotonically
with increasing initial acetic acid concentrations. Nevertheless,
when acetic acid is added at 2 g/l and whatever the strain
used, its elimination during alcoholic fermentation is not sufficient
to reach an acceptable level in the resulting wine according to the
current legislation.
For each medium, alcoholic fermentation was complete and
although its duration gradually increased, it did not seem to be
notably affected by acetic acid, even at 2 g/l (Table 1). As soon as
acetic acid is added to grape juice, alcoholic fermentation leads
to a decrease in the concentration of acetic acid relative to the
starting juice for the treatment considered. The amount of acetic
acid eliminated during alcoholic fermentation increases monotonically
with increasing initial acetic acid concentrations. Nevertheless,
when acetic acid is added at 2 g/l and whatever the strain
used, its elimination during alcoholic fermentation is not sufficient
to reach an acceptable level in the resulting wine according to the
current legislation.
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