TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Method: Method of producing ethanol involves introducing yeast into a process chamber, removing substantially all oxygen from within the process chamber, introducing a glucose solution into the process chamber, generating alcoholic fermentation between the yeast and the glucose solution within the process chamber to produce ethanol, and evacuating the ethanol from the process chamber through a selectively permeable membrane while maintaining the yeast within the process chamber. The method involves removing oxygen from the process chamber with a vacuum. The selectively permeable membrane provides for ethanol to flow through it, and prevents the flow of yeast through it. The selective permeable membrane provides ethanol to flow through it and prevents flow of ethanol through it or flow of at least some of the glucose solution out of the process chamber. The method involves controlling the flow of ethanol through the selectively permeable membrane to maintain a desired concentration of ethanol within the process chamber. The introducing includes controlling the flow of the glucose solution into the process chamber for controlling alcoholic fermentation. The selectively permeable membrane includes several pores. The creating step includes filling the process chamber with a non-oxygen containing gas. The introducing step includes flowing glucose solution into the process chamber, and out of the process chamber through the selectively permeable membrane. The method involves maintaining the ethanol producing yeast within the process chamber. The concentration of ethanol within the process chamber is controlled such that the concentration of ethanol to the ethanol producing yeast does not exceed 20%. The concentration of ethanol within the process chamber is controlled such that the concentration of ethanol does not exceed a concentration determined to denature the ethanol producing yeast.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: The non-oxygen containing gas is nitrogen gas (30).