Tobacco – Tobacco treatment – Extraction of component – other than moisture – by contact...
Patent
1988-12-07
1990-11-06
Millin, V.
Tobacco
Tobacco treatment
Extraction of component, other than moisture, by contact...
131298, A24B 1524, A24B 1526
Patent
active
049677713
ABSTRACT:
Tobacco extracts are provided by first extracting tobacco material with water and then subjecting the resulting aqueous tobacco extract to a liquid/liquid extraction process using a halocarbon or a halogenated hydrocarbon. Preferably, the pH of the aqueous extract is adjusted to about 9 or above prior to the liquid/liquid extraction step. The two immiscible solvents then are separated from one another such that there is provided an aqueous tobacco extract having certain extracted tobacco components removed therefrom and halocarbon or halogenated hydrocarbon solvent having extracted tobacco components carried thereby. The processed aqueous extract can be spray dried to provide a concentrated tobacco extract which then can be employed as a flavoring agent for cigarettes and other smoking articles. Tobacco components carried by the halocarbon or halogenated hydrocarbon solvent also can be separated from that solvent.
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Fagg Barry S.
Fredrickson, deceased James D.
Millin V.
R. J. Reynolds Tobacco Company
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