472 



23 



4,836,224 



24 



sociated fonn incorporated therein in an amount greater 

 than about I percent, based on the dry weight of the 

 smokable material. 



29. The cigarette of claim 28 wherein the smokable 

 material is smokable cut Tiller material. 



30. The cigarette of claim 28 wherein essentially all of 

 the levulinic acid is in nondissociated form. 



31. The cigarette of claim 28 wherein a portion of the 

 levalinic acid is provided to the cigarette in the form of 

 nicotine levulinate. 



32. The cigarette of claim 28, 29, 30 or 31 having a 

 ratio of FTC "tar" to FTC nicotine of less than 7. 



33. The cigarette of claim 28, 29, 30 or 31 having a 

 ratio of FTC "tar** to FTC nicotine within the range of 

 3 to 6. 



34. The cigarette of claim 28, 29, 30 or 31 wherein the 

 organic acid additive is incorporated therein in an 

 amount greater than about 2 percent, based on the dry 

 weight of the smokable material. 



35. The cigarette of claim 28, 29, 30 or 31 wherein the 

 organic acid additive is incorporated therein in an 

 amount greater than about 3 percent, based on the dry 

 weight of the smokable material. 



36. The cigarette of claim 28 or 30 including a filter 

 element, at least a portion of the levulinic acid being 

 present within the filter element. 



20 



25 



30 



33 



40 



43 



30 



55 



60 



65 



