ENHANCED ETHANOL FERMENTATION USING BK >DIGE STATE Background of the Invention Ethanol has many commercial uses, and, for example, can be used for combustion as a fuel or a fuel additive Ethanol (also known as bioethanol) can be produced by fermenting sugars contained in a feedstock The fermentation can be carried out by microorganisms, such as yeasts or bacteria, that can convert the sugars into