The organic solvent was evaporated and the aqueous residues were extracted twice into water-saturated butanol.
Once harvested, it can be fermented to produce biofuels such as ethanol, butanol, and methane, as well as biodiesel and hydrogen.
Approximate equivalent butanol blends can be calculated from the relations between the stoichiometric fuel-air ratio of butanol, ethanol and gasoline.
This organism also dies when the butanol content of whatever it is fermenting rises to 7%.
Examples of primary alcohols include ethanol and butanol.
Other experiments involve butanol, which can also be produced by fermentation of plants.
Making butanol from oil produces no such odour, but the limited supply and environmental impact of oil usage defeats the purpose of alternative fuels.
Butanol has been tried to remove during fermentation by many techniques like adsorption, gas stripping and liquid-liquid extraction.
