Tobacco smoking mixtures capable of producing tobacco smoke are provided which reduce the cytotoxicity and/or mutagenicity of the tobacco smoke. The tobacco smoking mixtures include tobacco cut filler and glycerin in an amount effective to reduce cytotoxicity and/or mutagenicity of smoke produced by the tobacco smoking mixture. The tobacco smoking mixtures enable a further reduction in cytotoxicity and/or mutagenicity when glycerin is combined with palladium or salts of calcium and/or magnesium.

An aerosol-generating composition having aerosol-generating material including a binder and an aerosol former and at least one susceptor at least partially embedded in the aerosol-generating material.

A method of preparing a whitened tobacco material for use in a smokeless tobacco product, including: (i) extracting a tobacco material with an aqueous solution to provide a tobacco solids material and a tobacco extract; (ii) bleaching the tobacco solids material with a solution comprising a strong base, an oxidizing agent, or a combination thereof to provide a bleached tobacco material; and (iii) drying the bleached tobacco material to provide the whitened tobacco material; wherein the tobacco solids material is not subjected to treatment at an elevated temperature with sulfur-containing reagents, organic solvents, sodium hydroxide, or an acid between the extraction and the bleaching.

A non-combustion type inhalation article comprising a tobacco filler having a tobacco particle density of not more than 0.51 g/cm.sup.3.

A smoking article formed from a tobacco material that includes tobacco non-isometric precipitated calcium carbonate microparticles is provided. The non-isometric microparticles typically have a mean diameter of from about 50 nanometers to about 3 micrometers, in some embodiments from about 80 nanometers to about 1 micrometer, in some embodiments from about 100 nanometers to about 400 nanometers, and in some embodiments, from about 200 nanometers to about 300 nanometers. Such non-isometric particles may have an elongated morphology so that the length of the microparticles is greater than the diameter. This may be characterized by the aspect ratio of the microparticles (length divided by width), which is typically from about 1 to about 15, in some embodiments from about 2 to about 12, and in some embodiments, from about 3 to about 10. For example, the average length of the microparticles may range from about 100 nanometers to about 8 micrometers, in some embodiments from about 300 nanometers to about 5 micrometers, in some embodiments from about 500 nanometers to about 4 micrometers, and in some embodiments, from about 1 micrometer to about 3 micrometers.

Provided are an aerosol generating article and an aerosol generating system using the same. The aerosol generating article includes a first portion containing a mouthpiece portion; and a second portion that is arranged adjacent to the first portion and includes a capsule, wherein the capsule includes a core region, a first shell, and a second shell, and the core region of the capsule includes nicotine and an aerosol generating material.

An aerosol-forming substrate for a heatable aerosol-generating article is provided, the aerosol-forming substrate including an aerosol-forming material and between 0.1 and 15 weight percent carbon particles, the carbon particles having a volume mean particle size of greater than 10 microns, the carbon particles having a particle size distribution having a D10 particle size and a D90 particle size, and the D90 particle size being less than 20 times the D10 particle size. A method of forming the aerosol-forming substrate, and an aerosol-generating article including the aerosol-forming substrate, are also provided.

A non-combustion type inhalation article comprising a tobacco filler having a tobacco particle density of not more than 0.51 g/cm.sup.3.

Methods of selectively reducing constituents in tobacco as well as the tobacco obtained by such methods are disclosed. Subcritical fluids, e.g., liquid carbon dioxide, serve as the reduction media.

The invention relates to tobacco wax compositions suitable for use in a vaporizer. The tobacco wax may comprise additional excipients including vapor agents, penetration agents, buffer agents, and rheological agents. The composition contains nicotine. The tobacco wax composition leaves a minimum of residue in the vaporizer when used. In another aspect, the invention relates to a portion-sized container (pod) of a tobacco wax composition for administration to a mammal or person. The pod is intended for use in a personal (or other) vaporizer.