Patent ID: 9085747
Filing Date: 2015-07-21
Classification: A01N,C07D,C11B,C11C

Abstract:
1. A method for recovering catmint oil from plants of the genus Nepeta , comprising (a) contacting (b) condensing the volatilized mixture to form a first liquid mixture comprising catmint oil and water; (c) contacting the first liquid mixture with at least one first non-water miscible organic extracting solvent to form a second liquid mixture that contains a first solvent phase and a first aqueous phase; (d) in the second liquid mixture, separating the first solvent phase from the first aqueous phase, and recovering the first solvent phase; (e) removing the first extracting solvent from the first solvent phase to isolate catmint oil and provide a first isolated portion of catmint oil; (f) contacting the first aqueous phase with at least one second non-water miscible organic extracting solvent to form a third liquid mixture that contains a second solvent phase and a second aqueous phase; (g) in the third liquid mixture, separating the second solvent phase from the second aqueous phase, and recovering the second solvent phase; (h) removing the second extracting solvent from the second solvent phase to isolate catmint oil and provide a second isolated portion of catmint oil; wherein the first and second extracting solvents are the same or different; and wherein the first and second portions of isolated catmint oil are, optionally, combined.