The theoretical maximum yield of ethanol from sugar was calculated
according to the stoichiometric ratio represented by Eq.
(1), i.e., 100 g of glucose produced 51.1 g ethanol and 48.9 g of CO2.
The ethanol yield from total sugars consumed (Y1), Eq. (2), and the
ethanol yield from the total initial sugars, Eq. (3), were calculated
including a correction for hydrolytic gain