concentration between 1.0 to 5.0 g/l keeping rest of the
parameters at their optimal conditions. Figure 3 shows
that as the concentration of ammonium sulphate increased from 1.0 to 3.0 g/l, ethanol production also increased
from to 5.84 to 6.98% for S. cerevisiae; above that
concentration ethanol production was decreased when
potato (Kufri Bahar) was used as substrates.
production.