Tobacco material, flavoring agent, and regenerated tobacco material, reduced in stimulus and pungency in the smoking stage, method of preparing tobacco material and method of preparing flavoring agent

Abstract

Tobacco material is reduced in stimulus and pungency in its smoking stage by decreasing a content of a colored acidic water-soluble polymer substance.

1 . A tobacco material which is decreased in stimulus and pungency in a smoking stage by decreasing a content of a colored acidic water-soluble polymer substance.  
   
   
       2 . The tobacco material according to  claim 1 , wherein the colored acidic water-soluble polymer substance has a molecular weight of 10,000 to 60,000 daltons.  
   
   
       3 . The tobacco material according to  claim 1 , wherein the tobacco material comprises Burley tobacco.  
   
   
       4 . A tobacco flavoring agent comprising a tobacco extract liquid which has been decreased in a causal component causing stimulus and pungency by decreasing a content of a colored acidic water-soluble polymer substance.  
   
   
       5 . The tobacco flavoring agent according to  claim 4 , wherein the colored acidic water-soluble polymer substance has a molecular weight of 10,000 to 60,000 daltons.  
   
   
       6 . The tobacco flavoring agent according to  claim 4 , wherein the tobacco extract liquid is from Burley tobacco.  
   
   
       7 . A regenerated tobacco material comprising a regenerated tobacco web comprising fibers which are an extraction residue of a natural tobacco material, added with a flavoring agent comprising an aqueous extract liquid from the natural tobacco material, wherein the flavoring agent is the tobacco extract liquid recited in  claim 4 .  
   
   
       8 . A method of preparing a tobacco material, comprising decreasing a colored acidic water-soluble polymer substance.  
   
   
       9 . A method of preparing a flavoring agent, comprising decreasing a colored acidic water-soluble polymer substance from an aqueous extract liquid of a natural tobacco material.