Bactericidal agent composition

Abstract

[Problem] To provide: a bactericidal agent composition which can exhibit an excellent bactericidal effect in the presence of an organic substance and against biofilms; a method for producing the bactericidal agent composition; and a sterilization method using the bactericidal agent composition. [Solution] A bactericidal agent composition which comprises water containing ultrafine bubbles having a most frequent particle diameter of 500 nm or less and a bactericidal component. Preferably, the density of most frequent particles of the ultrafine bubbles are 10,000 particles or more and the density of ultrafine bubbles each having a particle diameter of 1000 nm or less is 1,000,000 particles or more.

1 . A bactericidal agent composition comprising ultrafine bubbles having a most frequent particle diameter of 500 nm or less and a bactericidal component. 
     
     
         2 . The bactericidal composition according to  claim 1 , wherein the density of most frequent particle among the ultrafine bubbles are 1×10 4  particles or more. 
     
     
         3 . The composition according to  claim 1 , wherein the density of ultrafine bubbles each having a particle diameter of 1000 nm or less is 1×10 6  or more. 
     
     
         4 . The composition according to  claim 1 , wherein the interior of said ultrafine bubbles are filled with one or more gases selected from among air, oxygen, hydrogen, nitrogen, carbon dioxide, argon, neon, xenon, fluorinated gases, ozone, and inert gases. 
     
     
         5 . The composition according to  claim 1 , wherein said bactericidal component is a chlorine bactericidal component, an iodine bactericidal component, a peroxide bactericidal component, an aldehyde bactericidal component, a phenolic bactericidal component, a biguanide bactericidal component, a mercury bactericidal component, an alcoholic bactericidal component, a quaternary ammonium salt bactericidal component, an amphoteric surfactant bactericidal component, or a naturally derived antibacterial component. 
     
     
         6 . A process for producing a bactericidal agent composition which comprises mixing water containing ultrafine bubbles having a most frequent particle diameter of 500 nm or less with a bactericidal component. 
     
     
         7 . A process for producing a bactericidal agent composition which comprises generating ultrafine bubbles having a most frequent particle diameter of 500 nm or less within water containing a bactericidal component. 
     
     
         8 . A sterilization method using the bactericidal agent composition according to  claim 1 . 
     
     
         9 . A sterilization method comprising a step in which the bactericidal agent composition according to  claim 1  is brought into contact with a biofilm.