Use of polyphenol compounds or derivatives thereof as free-radical scavengers in cigarette filters
AssigneeBiosyntec
InventorIman EMAMI
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Abstract
This invention provides for reducing free-radicals from cigarette smoke by using a filter impregnated by an extract of a rosemary plant in oil, containing carnosol, rosmanol, rosmadial, carnosic acid, genkwanin and rosmarinic acid. The extract is obtained by extraction with an alcoholic solvent or an aqueous alcoholic solvent, followed by extraction with a supercritical fluid.
Claims11
1-12. (canceled)
A method for reducing free-radicals from cigarette smoke generated by smoking a cigarette having a filter, said method comprising the steps of passing the cigarette smoke through the filter wherein said filter is impregnated by an extract of a rosemary plant in oil wherein said extract is obtaining by the steps of:
- (a) extraction with an alcoholic solvent or an aqueous alcoholic solvent, followed by
- (b) extraction with a supercritical fluid;
- wherein the extract contains carnosol, rosmanol, rosmadial, carnosic acid, genkwanin and rosmarinic acid.
Dependencies are inferred from the claim text.