Tobacco-derived composition
AssigneeR.J. Reynolds Tobacco Company
InventorAnthony Richard Gerardi
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Abstract
Isolated O-methylated flavonoid compounds and mixtures of o-methylated flavonoid compounds derived from a plant of the Nicotiana species and methods of obtaining such compounds are provided. The o-methylated flavonoids can be combined with tobacco materials to produce tobacco products (e.g., smoking articles) to enhance the sensory characteristics thereof. The o-methyl flavonoids can alternatively be combined with non-tobacco materials for dietary supplement and/or pharmaceutical use.
Claims20
A method of extracting and isolating one or more o-methylated flavonoids from plants of the Nicotiana species, comprising:
- receiving a plant material of the Nicotiana species;
- contacting the plant material with a solvent for a time and under conditions sufficient to extract one or more o-methylated flavonoids from the plant material into the solvent;
- separating the solvent containing the one or more o-methylated flavonoids from the extracted plant material;
- and
- purifying the solvent containing the one or more o-methylated flavonoids to provide an isolate comprising at least about 50% by weight of the one or more o-methylated flavonoids on a dry weight basis.
An isolate from a plant of the Nicotiana species or a component thereof, wherein the isolate comprises about 50% or more on a dry weight basis of one or more o-methylated flavonoids.
Dependencies are inferred from the claim text.