The following parameters
were determined: yield of ethanol on substrate (YP/S), defined as g
of ethanol per g of initial reducing sugar consumed; biomass yield
on substrate (Yx/S), defined as g of biomass per g of initial reducing
sugar consumed; yield of ethanol on biomass (YP/X), defined as g of
ethanol per g of biomass; and volumetric productivity (QP), defined
as g of ethanol produced per unit volume per unit time.