Reduction of nitrosamines in tobacco and tobacco products
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United States of America Patent
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-
Jan 20, 2004
Grant Date -
Sep 26, 2002
app pub date -
Oct 3, 2001
filing date -
Oct 5, 2000
priority date (Note) -
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Abstract
A method for reducing the content of nitrosamines (e.g., N'-Nitrosonornicotine, 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone, N'-Nitrosoanatabine, and N'-Nitrosoanabasine) in tobacco is provided. In one embodiment, the method includes combining tobacco with a solvent (e.g., water and/or other compounds) to form a soluble portion. The soluble portion contains an initial total level of tobacco-specific nitrosamines per gram of the soluble portion. The soluble portion is contacted with a nitrosamine-reducing material such that the resulting weight percentage of the tobacco-specific nitrosamines per gram of said soluble portion is at least about 20% less than the initial total level of the tobacco-specific nitrosamines per gram of the soluble portion.
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