Tobacco extract treatment with insoluble adsorbent
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United States of America Patent
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May 17, 1994
Grant Date -
N/A
app pub date -
Dec 31, 1991
filing date -
Dec 31, 1991
priority date (Note) -
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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.
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