Extraction and storage of tobacco constituents

Details Extraction and storage of tobacco constituents Extraction and storage of tobacco constituents

A - Human Necessities

24

B

A24B 15/24 (2006.01)

Patent

CA 2614730

A method of forming a liquor comprising tobacco solutes, the method comprising extracting tobacco solutes from tobacco by flowing an extraction solvent through tobacco in an extraction vessel (1) to form a tobacco solutes -rich extraction solvent and a tobacco solutes -poor tobacco, and forming tobacco solutes-rich liquor by flowing the tobacco solutes-rich extraction solvent through an entrapment solvent, wherein the tobacco solutes comprise nicotine and at least one tobacco flavor compound and/or tobacco aroma compound and the liquor comprises the tobacco solutes dissolved in the entrapment solvent. A preferred extraction solvent comprises a supercritical fluid. Also provided are cigarettes and cigarette components comprising extracted tobacco solutes such as flavor compounds, aroma compounds and nicotine. Further, tobacco from which aroma compounds and/or nicotine have been extracted can be used in cigarettes.

La présente invention concerne un procédé permettant de former une liqueur contenant des solutés de tabac. Le procédé consiste à extraire des solutés de tabac de tabac par circulation d'un solvant d'extraction à travers le tabac afin de former un solvant d'extraction riche en solutés de tabac et un tabac pauvre en solutés de tabac. Le procédé consiste également à former une liqueur riche en solutés de tabac par circulation du solvant d'extraction riche en solutés de tabac à travers un solvant de piégeage; les solutés de tabac comprennent la nicotine et au moins un composé de sapidité du tabac et/ou un composé aromatique du tabac. La liqueur comprend les solutés de tabac dissous dans le solvant de piégeage. Un solvant d'extraction privilégié comprend un fluide supercritique. En outre, cette invention concerne des cigarettes ainsi que des composants de cigarettes comprenant des solutés de tabac extraits, tels que des composés de sapidité, des composés aromatiques et la nicotine. En outre, le tabac à partir duquel les composés aromatiques et/ou la nicotine ont été extraits peut être utilisé dans les cigarettes.

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