Using these preliminary
data a mixture of these yeasts was proposed to improve
yields. It was also possible to determine that henequen leaf juice
contains sugars that can be metabolized to produce alcohol, but
with insufficient concentration to obtain acceptable yields, therefore,
industrial molasses were added. Thus, the raw materials for
the production of ethanol as fuel are two industrial residues: henequen
leaf juice produced by the natural fiber industry and molasses
produced by the sugar industry.