A tobacco preparation method, where a tobacco material is prepared through at least one extrusion process including compressing the material with an increase in pressure and temperature and mechanically processing and abruptly flash drying the material at an extruder outlet, where the tobacco material includes a tobacco lamina material, where a tobacco preparation device includes a dosing conveyor and an extruder which compresses a tobacco material with an increase in pressure and temperature and mechanically process and abruptly flash dries the material at the extruder outlet, where the components are designated as a unit which can be modularly delimited for processing a tobacco material including a tobacco lamina material, where an arrangement of several tobacco preparation devices and a smoking article or cigarette manufacturing device inlcudes such a device or such a device arrangement which is connected upstream of a cigarette maker or a secondary unit as a tobacco preparation module.

Method of manufacturing a cut stem with increased filling capacity comprises tearing a rod-like stem material having a water content of 20 to 50% by weight, shredding the torn rod-like stem material, and subjecting the rod-like cut stem material to expansion treatment.

Method of manufacturing a cut stem with increased filling capacity comprises tearing a rod-like stem material having a water content of 20 to 50% by weight, shredding the torn rod-like stem material, and subjecting the rod-like cut stem material to expansion treatment.

The present invention relates to method for production of a slurry for homogenized tobacco material, said method comprising: Selecting tobacco of one or more tobacco types; Coarse grinding said tobacco; Blending said tobacco of one or more tobacco types; andFine grinding said tobacco of one or more tobacco types.

The present invention relates to method for production of a slurry for homogenized tobacco material, said method comprising: Selecting tobacco of one or more tobacco types; Coarse grinding said tobacco; Blending said tobacco of one or more tobacco types; andFine grinding said tobacco of one or more tobacco types.

A tobacco preparation method, where a tobacco material is prepared through at least one extrusion process including compressing the material with an increase in pressure and temperature and mechanically processing and abruptly flash drying the material at an extruder outlet, wherein the tobacco material includes a tobacco lamina material, where a tobacco preparation device includes a dosing conveyor and an extruder which compresses a tobacco material with an increase in pressure and temperature and mechanically process and abruptly flash dries the material at the extruder outlet, where the components are designated as a unit which can be modularly delimited for processing a tobacco material including a tobacco lamina material, where an arrangement of several tobacco preparation devices and a smoking article or cigarette manufacturing device includes such a device or such a device arrangement which is connected upstream of a cigarette maker or a secondary unit as a tobacco preparation module.

A tobacco preparation method, where a tobacco material is prepared through at least one extrusion process including compressing the material with an increase in pressure and temperature and mechanically processing and abruptly flash drying the material at an extruder outlet, wherein the tobacco material includes a tobacco lamina material, where a tobacco preparation device includes a dosing conveyor and an extruder which compresses a tobacco material with an increase in pressure and temperature and mechanically process and abruptly flash dries the material at the extruder outlet, where the components are designated as a unit which can be modularly delimited for processing a tobacco material including a tobacco lamina material, where an arrangement of several tobacco preparation devices and a smoking article or cigarette manufacturing device includes such a device or such a device arrangement which is connected upstream of a cigarette maker or a secondary unit as a tobacco preparation module.

There is provided a method for determining the level of a polycyclic compound of interest present on the surface of a tobacco leaf, the method comprising the steps of: (a) washing the surface of the tobacco leaf with a solvent, the solvent comprising at least a non-polar solvent, such that no greater than about 10 wt. % of the polycyclic compound of interest present on the surface of the tobacco leaf is removed from the surface of the tobacco leaf; (b) collecting the solvent from step (a); and (c) subjecting the collected solvent to fluorescence spectroscopy to determine the level of the polycyclic compound of interest.

There is provided a method for determining the level of a polycyclic compound of interest present on the surface of a tobacco leaf, the method comprising the steps of: (a) washing the surface of the tobacco leaf with a solvent, the solvent comprising at least a non-polar solvent, such that no greater than about 10 wt. % of the polycyclic compound of interest present on the surface of the tobacco leaf is removed from the surface of the tobacco leaf; (b) collecting the solvent from step (a); and (c) subjecting the collected solvent to fluorescence spectroscopy to determine the level of the polycyclic compound of interest.

A process for production of bleached tobacco raw material comprising: (I) mechanically defibrating uncooked tobacco raw material to produce a defibrated tobacco raw material; and (II) treating the defibrated tobacco raw material with at least one bleaching agent to produce a treated tobacco raw material.

Embodiments also include bleached tobacco raw material obtainable by the process.