Patent ID: 7687648

Claim:
A method of producing an organic defatted cake and an oil, the method comprising: a. dehulling a whole bean or whole grain feedstock to provide an oil bearing biomass from which the hulls have been removed: b. feeding the oil bearing biomass to a continuous screw press extractor; c. compressing the biomass in the screw press extractor to form a cake plug that is essentially impermeable to fluids; d. relieving the pressure on the biomass in the screw press extractor; e. feeding an organic solvent to the screw press extractor and into the biomass; f. compressing the biomass in the screw press extractor to extract oil and solvent from the biomass to create the organic defatted cake having a residual oil content of less than 6%; g. separating the extracted oil and solvent from the defatted biomass; and h. recovering the extracted oil, the oil having an average of less than 50 parts per million phosphorous.