oduction of 1 kg of ethanol, 1.96 kg of sugars is required.
The theoretical maximum ethanol yield, derived from the
starch content of the flower stalks of the sample used is
therefore 57.3 cm3 kg1 based on dry material. The obtained
ethanol from the experiments was reduced in average to
55.8 cm3 kg1 based on dry flower stalks, with a small standard
deviation of measurements. This was due to the incomplete
fermentation of the sugars in the juice during the three days
allowed for the fermentation process and the distillation effi-
ciency. A small part of the sugars is used during fermentation
by the yeast to produce new cells and grow and not all Ethanol
can be separated from water by the distillation process.