Deodorant composition

Abstract

It is intended to provide a novel deodorant composition which is excellent in the deodorizing effect, is capable of affording a deodorant composition by a convenient method, and shows no decrease in the deodorizing performance even after a long period of time, once the deodorant being prepared. Specifically, there is provided a deodorant composition containing, as the active component, a colored compound obtainable by reacting a polyphenol in a solvent showing alkalinity in the coexistence of an oxygen molecule at a reaction pH value of 6.5 or more. As a substitute for a polyphenol, use can be made of a plant extract containing a polyphenol but containing substantially no amino acid. It is also possible to further employ an amino acid. Furthermore, use can be made of a plant extract and/or a plant body containing a polyphenol and an amino acid.

1 . A deodorant composition comprising, as an active component, a colored compound obtainable by reacting a polyphenol in a solvent showing alkalinity in the coexistence of oxygen molecules at a reaction pH value of 6.5 or more.  
   
   
       2 . The deodorant composition according to  claim 1 , wherein an oxygen molecule supplying amount during the reaction is 1 mg/L or more.  
   
   
       3 . The deodorant composition according to  claim 1  or  2 , wherein the reaction temperature is in the range of 0 to 60° C.  
   
   
       4 . The deodorant composition according to  claim 1 , wherein a metal ion is further added to the reaction system and the reaction is carried out.  
   
   
       5 . The deodorant composition according to  claim 1 , wherein the polyphenol is a polyphenol having an o-diphenol structure.  
   
   
       6 . The deodorant composition according to  claim 1 , wherein the polyphenol is hydroquinone.  
   
   
       7 . A deodorant composition comprising, as an active component, a colored compound obtainable by reacting a plant extract containing a polyphenol but containing substantially no amino acid in a solvent showing alkalinity in the coexistence of oxygen molecules at a reaction pH value of 6.5 or more.  
   
   
       8 . The deodorant composition according to  claim 1 , wherein an amino acid is further added to the reaction system and the reaction is carried out.  
   
   
       9 . The deodorant composition according to  claim 8 , wherein the amino acid is an α-ammo acid.  
   
   
       10 . A deodorant composition comprising, as an active component, a colored compound obtainable by reacting a plant extract and/or a plant body containing a polyphenol and an amino acid in a solvent showing alkalinity in the coexistence of oxygen molecules at a reaction pH value of 6.5 or more.