Tobacco extract treatment with insoluble adsorbent
AssigneeImasco Limited
InventorsYves D. De Grandpre, Andrew R. Porter
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Abstract
This invention provides a method for reducing the protein content of tobacco material which includes extracting the tobacco material with a solution containing a surfactant. The tobacco material may be first extracted with an aqueous solvent to produce an aqueous extract before being treated with the solution containing a surfactant. This invention also provides a method for removing polypeptides from an aqueous extract of tobacco material which includes treating the extract with an insoluble adsorbent selected from the group comprising hydroxyapatite and a fuller's earth mineral such as bentonite. Treatment of the aqueous extract with bentonite will produce an extract having a reduced pigment and polypeptide content.
Claims11
A method for removal of polypeptides from an aqueous tobacco extract solution, which method comprises the steps of:
- (a) mixing the solution together with an insoluble absorbent selected from the group consisting of hydroxylapatite, bentonite, and fuller's earth mineral;
- and
- (b) separating the extract from the absorbent.
Dependencies are inferred from the claim text.