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US 5,060,669 AGranted
Tobacco treatment process
AssigneeR. J. Reynolds Tobacco Company
InventorsJackie L. White, Milly M. L. Wong, Chi-Kuen Shu, Thomas A. Perfetti
Life of this patent
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Abstract
Flavorful tobacco extracts are provided by subjecting a moist spray dried tobacco extract to heat treatment. The moist extract is contacted with a sugar and an amino acid, and exposed to a temperature above about 100.degree. C. in a pressure controlled vessel. Resulting flavorful extracts are useful as forms of tobacco in cigarettes and other smoking articles.
Claims21
A process for altering the chemical nature of a tobacco extract, the process comprising the steps of:
- (a) extracting tobacco material with an extraction solvent to provide a tobacco extract,
- (b) providing the tobacco extract within a liquid having an aqueous character such that the moisture content thereof is at least about 5 percent, based on the total weight of the solvent and extract,
- (c) subjecting the tobacco extract to heat treatment at above ambient pressure (i) in a pressure controlled environment, and (ii) at a temperature above about 100.degree. C.
Dependencies are inferred from the claim text.