Table 3 shows the ethanol production (g L1), product yield Y
p/s (g of product/g of sugar consumed) and percentage of the maximum
theoretical yield, with the use of various enzyme combinations.
In all enzyme treatments, S. cerevisae produced high
quantities of ethanol (6.0–7.6 g L1), with the exception of combination
(b) resulting in lower ethanol production (4.2 g L1). The
product yield Y p/s (g of product/g of sugar consumed) was about
0.46. In all cases the product yield corresponded up to 91% of the
max theoretical yield.