Fecha de publicación: 17/12/2005 Fuente: WIPO "propolis" A smokeless tobacco product suitable for human consumption is prepared from powdered tobacco. In one aspect, the powdered tobacco has a collective content of N'-nitrosonomicotine (NNN),4-(N-nitrosomethylamino)-I-(3-pyridyl)-l-butanone (NNK), N'-nitrosoanatabine (NAT) and N'-nitrosoanabasine (NAB) which is 0.3 µg/g or less. In another aspect, a smokeless tobacco product comprises powdered tobacco and from about 0.5 to about 15 wt% peppermint, from about 0.5 to about 15 wt% spaermint, from about 0.5 to about 15 wt% menthol, and from about 0.5 to about 15 wt% eucalyptus. The powdered tobacco can be prepared by pulverizing cured tobacco or, alternatively, from an aqueous extract of tobacco.