Delivery systems and compositions for inclusion therein

Abstract

Non-combustible provision systems including a tobacco flavor composition including volatile and semi-volatile tobacco flavor compounds. Aerosol-generating materials including the tobacco flavor composition, consumables, and the use of these compositions for providing long-lasting flavor from a non-combustible aerosol provision system.

1 . A non-combustible aerosol provision system comprising a concentrated tobacco flavor composition comprising at least one volatile tobacco flavor compound having a boiling point of less than 200° C. at atmospheric pressure and at least one semi-volatile tobacco flavor compound having a boiling point between 200 and 250° C. at atmospheric pressure. 
     
     
         2 . A system as claimed in  claim 1 , wherein the concentrated tobacco flavor composition comprises a tobacco extract prepared from tobacco material by molecular distillation and high vacuum fractionation, wherein the extract comprises concentrated tobacco flavor compounds, including a first fraction of tobacco compounds having a boiling point of less than 200° C. at atmospheric pressure, and a second fraction of tobacco compounds having a boiling point between 200 and 250° C. at atmospheric pressure, and wherein the extract is diluted in a solvent. 
     
     
         3 . A system as claimed in  claim 2 , wherein the tobacco extract comprises a high concentration of volatile flavor and aroma compounds compared to a tobacco extract prepared by a conventional aqueous extraction process. 
     
     
         4 . A system as claimed in  claim 2 , wherein the extract is diluted from about 100 fold to about 1000 fold to make a 1% w/w to 0.1% w/w solution. 
     
     
         5 . A system as claimed in  claim 4 , wherein a volume of the diluted extract is applied to tobacco material to give final extract concentration in the tobacco material of 0.01-0.1% by dry weight. 
     
     
         6 . A system as claimed in  claim 2 , wherein the extract comprises from about 1% to about 20% nicotine prior to dilution. 
     
     
         7 . A system as claimed in  claim 2 , wherein the extract diluted in the solvent comprises from about 0.1% to about 0.001% w/w nicotine. 
     
     
         8 . A system as claimed in  claim 2 , wherein the extract comprises from about 5×10 −5  to about 5×10 −4 % TSNAs prior to dilution. 
     
     
         9 . A system as claimed in  claim 2 , wherein the extract diluted in the solvent comprises from about 1×10 −10  to about 1×10 −8 % w/w TSNAs. 
     
     
         10 . A system as claimed in  claim 1 , wherein the flavor composition comprises a solvent, optionally selected from the group consisting of propylene glycol, glycerine, vegetable glycerine, triacetin and ethanol. 
     
     
         11 . A system as claimed in  claim 1 , wherein the aerosol provision system is a tobacco heating product comprising an aerosol-generating material which is to be heated to volatilize constituents. 
     
     
         12 . A system as claimed in  claim 1 , wherein the aerosol provision system is a hybrid product comprising an aerosol-generating material which is to be heated to volatilize constituents, and a liquid which is to be heated to form a vapor. 
     
     
         13 . A system as claimed in  claim 11 , wherein the aerosol-generating material comprises the tobacco flavor composition. 
     
     
         14 . A system as claimed in  claim 12 , wherein the liquid comprises the tobacco flavor composition. 
     
     
         15 . A system as claimed in  claim 12 , wherein the liquid is a nicotine-free liquid. 
     
     
         16 . An aerosol-generating material for use in a non-combustible aerosol provision system, comprising a concentrated tobacco flavor composition comprising at least one volatile tobacco flavor compound having a boiling point of less than 200° C. at atmospheric pressure and at least one semi-volatile tobacco flavor compound having a boiling point between 200 and 250° C. at atmospheric pressure. 
     
     
         17 . An aerosol-generating material as claimed in  claim 16 , wherein the tobacco flavor composition comprises a tobacco extract and a solvent, wherein the tobacco extract is prepared by molecular distillation and high vacuum fractionation, and wherein the extract comprises concentrated volatile tobacco flavor compounds, including a first fraction of tobacco compounds having a boiling point of less than 200° C. at atmospheric pressure, and a second fraction of tobacco compounds having a boiling point between 200 and 250° C. at atmospheric pressure. 
     
     
         18 . An aerosol-generating material as claimed in  claim 17 , wherein the extract comprises a high concentration of volatile flavor and aroma compounds compared to a tobacco extract prepared by a conventional aqueous extraction process. 
     
     
         19 . An aerosol-generating material as claimed in  claim 17 , wherein the extract is diluted from about 100 fold to about 1000 fold to make a 1% w/w to 0.1% w/w solution. 
     
     
         20 . An aerosol-generating material as claimed in  claim 19 , wherein a volume of the diluted extract is applied to tobacco material to give final extract concentration in the tobacco material of 0.01-0.1% by dry weight. 
     
     
         21 . An aerosol-generating material as claimed in  claim 17 , wherein the extract comprises from about 1% to about 20% nicotine prior to dilution. 
     
     
         22 . An aerosol-generating material as claimed in  claim 17 , wherein the extract diluted in the solvent comprises from about 0.1% to about 0.001% w/w nicotine. 
     
     
         23 . An aerosol-generating material as claimed in  claim 17 , wherein the extract comprises from about 5×10 −5  to about 5×10 −4 % TSNAs prior to dilution. 
     
     
         24 . An aerosol-generating material as claimed in  claim 17 , wherein the extract diluted in the solvent comprises from about 1×10 −10  to about 1×10 −8 % w/w TSNAs. 
     
     
         25 . An aerosol-generating material as claimed in  claim 17 , wherein the tobacco flavor composition comprises a solvent, optionally selected from the group consisting of propylene glycol, glycerine, vegetable glycerine, triacetin and ethanol. 
     
     
         26 . A consumable for a non-combustible aerosol provision system comprising an aerosol-generating material as claimed in  claim 17 . 
     
     
         27 . Use of a concentrated tobacco flavor composition comprising at least one volatile tobacco flavor component having a boiling point of less than 200° C. at atmospheric pressure and at least one semi-volatile tobacco flavor component having a boiling point between 200 and 250° C. at atmospheric pressure, for providing long-lasting flavor from a non-combustible aerosol provision system.