Smoking article including acids

Abstract

The present disclosure provides a smoking article including a filter portion and a cigarette column portion, and the filter portion and the cigarette column portion contain compositions that are identical to or different from each other. The compositions may include at least one selected from a group consisting of pyruvic acid, lactic acid, and citric acid.

1 . A smoking article comprising a filter portion and a cigarette column portion,
 wherein the filter portion and the cigarette column portion contain compositions that are identical to or different from each other, and the compositions comprise at least one selected from a group consisting of pyruvic acid, lactic acid, and citric acid.   
     
     
         2 . The smoking article of  claim 1 , wherein the filter portion comprises pyruvic acid. 
     
     
         3 . The smoking article of  claim 2 , wherein the pyruvic acid is included in an amount of 0.01% by weight (wt %) or greater to less than 0.1 wt % with respect to cut tobacco leaves. 
     
     
         4 . The smoking article of  claim 2 , wherein the cigarette column portion comprises lactic acid. 
     
     
         5 . The smoking article of  claim 4 , wherein the lactic acid is included in an amount of 0.01 wt % or greater to 2 wt % or less with respect to cut tobacco leaves. 
     
     
         6 . The smoking article of  claim 2 , wherein the cigarette column portion comprises lactic acid and citric acid. 
     
     
         7 . The smoking article of  claim 6 , wherein the lactic acid is included in an amount of 0.01 wt % or greater to 2 wt % or less with respect to cut tobacco leaves. 
     
     
         8 . The smoking article of  claim 6 , wherein the citric acid is included in an amount of 0.01 wt % or greater to 10 wt % or less with respect to cut tobacco leaves. 
     
     
         9 . The smoking article of  claim 2 . further comprising a flavoring material. 
     
     
         10 . The smoking article of  claim 9 . wherein the flavoring material is undecalactone.