Patent ID: 8887737
Filing Date: 2014-11-18
Classification: A24B

Abstract:
1. A method of forming a tobacco solutes-rich liquor in an apparatus, the method comprising: i) extracting tobacco solutes from tobacco by contacting the tobacco with a supercritical extraction solvent while recirculating the supercritical extraction solvent through a first vessel containing tobacco to form a mixture of tobacco and tobacco solutes-containing supercritical extraction solvent, wherein the supercritical extraction solvent comprises a supercritical fluid, and ii) removing the tobacco solutes from the supercritical extraction solvent by contacting the solutes-containing supercritical extraction solvent with an entrapment solvent while recirculating the tobacco solutes-containing supercritical extraction solvent through a second vessel containing the entrapment solvent to form a tobacco solutes-rich liquor, wherein the supercritical fluid is maintained in a supercritical state during said recirculating and said i) extracting and ii) removing, and wherein