Tobacco raw material, method for manufacturing same, and tobacco product
AssigneeJapan Tobacco Inc.
InventorNaoyuki ISHIDA
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Abstract
The present invention provides a tobacco raw material having a good smoking flavor and a method for producing the same. Provided is a tobacco raw material having a ratio, which is expressed as “water-extracted material weight/hexane-extracted material weight,” between the weight of an extracted material obtained by extraction using n-hexane as a solvent and the weight of an extracted material obtained following the extraction by further extraction using water as a solvent, of 0 or more and 1.5 or less.
Claims7
A tobacco raw material having a ratio, which is expressed as “water-extracted material weight/hexane-extracted material weight,” between the weight of an extracted material obtained by extraction using n-hexane as a solvent and the weight of an extracted material obtained following the extraction by further extraction using water as a solvent, of 0 or more and 1.5 or less.
A method of producing a tobacco raw material, comprising:
- a first extraction step of extracting a leaf tobacco material using a solvent having a dielectric constant of 1 or more and less than 25 to obtain an extract and an extraction residue;
- a second extraction step of, after the first extraction step, extracting the extraction residue obtained in the first extraction step using a solvent having a dielectric constant of 25 or more to obtain an extraction residue;
- and the step of re-applying the extract obtained in the first extraction step to the extraction residue obtained in the second extraction step so as to form a leaf tobacco raw material.
Dependencies are inferred from the claim text.