Novel aerosol-generating substrate comprising illicium species

Abstract

An aerosol-generating article is provided, including: an aerosol-generating substrate including a homogenised star anise material including star anise particles, an aerosol former, and an exogenous binder, the aerosol-generating substrate including: at least 70 micrograms of (E)-anethole per gram of the aerosol-generating substrate, on a dry weight basis, at least 50 micrograms of epoxyanethole per gram of the aerosol-generating substrate, on a dry weight basis, and at least 130 micrograms of benzyl isoeugenol ether per gram of the aerosol-generating substrate, on a dry weight basis.

1 . An aerosol-generating article, comprising:
 an aerosol-generating substrate including a homogenised star anise material comprising star anise particles, an aerosol former, and an exogenous binder,   wherein the aerosol-generating substrate comprises:
 at least 70 micrograms of (E)-anethole per gram of the aerosol-generating substrate, on a dry weight basis, 
 at least 50 micrograms of epoxyanethole per gram of the aerosol-generating substrate, on a dry weight basis, and 
 at least 130 micrograms of benzyl isoeugenol ether per gram of the aerosol-generating substrate, on a dry weight basis. 
   
     
     
         2 . The aerosol-generating article according to  claim 1 ,
 wherein an amount of (E)-anethole per gram of the aerosol-generating substrate is no more than 5 times an amount of epoxyanethole per gram of the aerosol-generating substrate, and   wherein an amount of benzyl isoeugenol ether per gram of the aerosol-generating substrate is at least 1.5 times an amount of (E)-anethole per gram of the aerosol-generating substrate.   
     
     
         3 . The aerosol-generating article according to  claim 1 , wherein the aerosol-generating substrate further comprises between 1 milligram and 20 milligrams of nicotine per gram of the substrate, on a dry weight basis. 
     
     
         4 . The aerosol-generating article according to  claim 1 , wherein the homogenised star anise material comprises between 5 percent by weight and 30 percent by weight of aerosol former and between 1 percent by weight and 10 percent by weight of exogenous binder, on a dry weight basis. 
     
     
         5 . The aerosol-generating article according to  claim 1 , wherein the exogenous binder comprises guar gum. 
     
     
         6 . The aerosol-generating article according to  claim 1 , wherein the homogenised star anise material comprises at least 2.5 percent by weight of star anise particles, on a dry weight basis. 
     
     
         7 . The aerosol-generating article according to  claim 1 ,
 wherein the homogenised star anise material further comprises tobacco particles, and   wherein a weight ratio of the star anise particles to the tobacco particles is no more than 1:4.   
     
     
         8 . The aerosol-generating article according to  claim 1 , wherein the homogenised star anise material in the aerosol-generating substrate is in the form of cast leaf. 
     
     
         9 . The aerosol-generating article according to  claim 1 , wherein the homogenised star anise material in the aerosol-generating substrate is in the form of star anise paper. 
     
     
         10 . The aerosol-generating article according to  claim 1 ,
 wherein upon heating of the aerosol-generating substrate according to Test Method A, an aerosol is generated comprising:
 at least 20 micrograms of (E)-anethole per gram of the aerosol-generating substrate, on a dry weight basis, 
 at least 10 micrograms of epoxyanethole per gram of the aerosol-generating substrate, on a dry weight basis, and 
 at least 3.5 micrograms of benzyl isoeugenol ether per gram of the aerosol-generating substrate, on a dry weight basis, 
   wherein an amount of (E)-anethole per gram of the aerosol-generating substrate is no more than 5 times an amount of epoxyanethole per gram of the aerosol-generating substrate, and   wherein an amount of (E)-anethole per gram of the aerosol-generating substrate is no more than 10 times an amount of benzyl isoeugenol per gram of the aerosol-generating substrate.   
     
     
         11 . The aerosol-generating article according to  claim 10 ,
 wherein the amount of (E)-anethole per gram of the aerosol-generating substrate is no more than 5 times the amount of epoxyanethole per gram of the aerosol-generating substrate, and   wherein the amount of (E)-anethole per gram of the aerosol-generating substrate is no more than 6 times the amount of benzyl isoeugenol ether per gram of the aerosol-generating substrate.   
     
     
         12 . The aerosol-generating article according to  claim 1 ,
 wherein upon heating of the aerosol-generating substrate according to Test Method A, the aerosol generated from the aerosol-generating substrate comprises:
 (E)-anethole in an amount of at least 0.4 micrograms per puff of aerosol, 
 epoxyanethole in an amount of at least 0.2 micrograms per puff of aerosol, and 
 benzyl isoeugenol ether in an amount of at least 0.1 micrograms per puff of aerosol, 
   wherein a puff of aerosol has a volume of 55 millilitres as generated by a smoking machine,   wherein the amount of (E)-anethole per puff is no more than 5 times the amount of epoxyanethole per puff, and   wherein the amount of (E)-anethole per puff is no more than 10 times the amount of benzyl isoeugenol ether per puff.   
     
     
         13 . The aerosol-generating article according to  claim 1 , further comprising a hollow tube downstream of the aerosol-generating substrate and a ventilation zone at a location along the hollow tube. 
     
     
         14 . The aerosol-generating article according to  claim 1 , further comprising an upstream element at the upstream end of the aerosol-generating substrate. 
     
     
         15 . An aerosol-generating substrate, comprising:
 a homogenised star anise material comprising star anise particles, an aerosol former, and an exogenous binder;   at least 70 micrograms of (E)-anethole per gram of the aerosol-generating substrate, on a dry weight basis;   at least 50 micrograms of epoxyanethole per gram of the aerosol-generating substrate, on a dry weight basis; and   at least 130 micrograms of benzyl isoeugenol ether per gram of the aerosol-generating substrate, on a dry weight basis.   
     
     
         16 . An aerosol-generating system, comprising:
 an aerosol-generating device comprising a heating element; and   an aerosol-generating article according to  claim 1 .   
     
     
         17 . A method of making an aerosol-generating substrate according to  claim 15 , the method comprising the steps of:
 forming a slurry comprising star anise particles, water, an aerosol former, an exogenous binder and optionally tobacco particles;   casting or extruding the slurry in the form of a sheet or strands; and   drying the sheet or the strands at between 80 degrees Celsius and 160 degrees Celsius.