NOVELTY - The method comprises transferring the feed source to a liquid-liquid extraction unit (1) comprising equilibrium stages, and contacting the feed source with an extraction solvent in each of the equilibrium stages. The extraction solvent comprises an aromatic solvent and a solvent modifier, and is immiscible with the feed source. The feed source is contacted by transferring the organic solute from the feed source to the extraction solvent, and recovering a raffinate phase depleted of the organic solute and an extract phase (112) enriched in the organic solute.    USE - The method is useful for extracting and separating an organic solute such as acetone, butanol, isobutanol and ethanol from fermentation feed source such as a biofuel (all claimed).    ADVANTAGE - The method is capable of economically, effectively and efficiently extracting the organic solute from the feed source with less energy consumption and excellent distribution coefficient.    DETAILED DESCRIPTION - The method comprises transferring the feed source to a liquid-liquid extraction unit (1) comprising equilibrium stages, and contacting the feed source with an extraction solvent in each of the equilibrium stages. The extraction solvent comprises an aromatic solvent and a solvent modifier, and is immiscible with the feed source. The feed source is contacted by transferring the organic solute from the feed source to the extraction solvent, and recovering a raffinate phase depleted of the organic solute and an extract phase (112) enriched in the organic solute. The method further comprises removing any residual extraction solvent from the raffinate phase, removing the organic solute from the extract phase, recycling the extraction solvent after removing the organic solute, applying an electric field to the extraction solvent and the feed source while contacting occurs, passing the extract phase through a bed of 5 Angstrom molecular sieve zeolites that adsorb the organic solute and form solute-free dewatered feed source comprising spent extraction solvent, recovering the organic solute from the 5 Angstrom molecular sieve zeolites, and recycling the spent extraction solvent. The organic solute is dissolved in the extraction solvent in the extract phase. The solvent modifier is a solid at room temperature. The electric field increases a surface area of the extraction solvent dispersed in the feed source. The organic solute is recovered by heating and applying a vacuum to the 5 Angstrom molecular sieve zeolites. The 5 Angstrom molecular sieve zeolites are operated in a swing bed fashion. The organic solute has a molecular diameter of less than 4 Angstrom . An INDEPENDENT CLAIM is included for an apparatus of extracting an organic solute from a feed source.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a liquid-liquid extraction unit.    Liquid-liquid extraction unit (1)    Extraction vessel (100)    Separator vessel (102)    Extract phase (112)    Product stream (114)    Solvent stream. (115)