B.a.t. Cigarettenfabriken Gmbh

Volker Heemann

Gerald Schmekel

Uwe Ehling

Casper H Koene

Werner Hass

Arno Weiss

Wilfried Stiller

Bernhard Hauser

Jurgen Nusslein

Ursula Brummer

Helge Rabitz

A method is described for extracting tobacco alkaloids from tobacco in which the tobacco alkaloids are extracted from the tobacco with carbon dioxide under supercritical conditions and the tobacco alkaloids separated from the carbon dioxide, wherein in the carbon dioxide for the extraction of the tobacco alkaloids from the tobacco is mixed with a solid 2 to 3-basic organic acid having a total of 2 to 6 carbon atoms, a monoalkali or monoammonium salts thereof in order to appreciably shorten the extraction times.

Method for extracting tobacco alkaloids

With the present invention a tobacco sheet or foil is proposed which has an elevated filling force and consists of tobacco particles, water, binders and moisturizers, and relatively gas-impermeable, in particular surface-sealed cover layers being connected together by a spongy structure which is formed by gas-filled bubbles, and in which cavities are formed having a shaggy, furrowed and/or torn surface.

Tobacco sheet and method and apparatus for the production of a tobacco

Aromatic substances are produced from diterpene fractions in a solvent which is oxidized in the absence of photochemically active radiation. The oxidation is performed with an oxidizing agent in the presence of a catalyst. The oxidizing agent is selected from oxygen, peroxo compounds, halogenates and periodates. The catalyst is selected from compounds of tin, lead, cerium, and transition metals of groups Ib, IVb, Vb, VIb, VIIb and VIII.

Process for the preparation of aromatic substances from diterpene

Aromatic substances to be applied to tobacco to improve aroma characteristics are prepared by exposing an alcoholic extract, which contains diterpenes and has been isolated from the surface resin of fresh tobacco plants, parts or from gum originating from tobacco flowers, to ultraviolet light and oxygen.

Process for the preparation of aromatic substances

Growing community of inventors

Reinbek, Germany

Volker Heemann