Hiroshima University

Altan Co., Ltd.

Takemasa Sakaguchi

Hiroki Nikawa

Hironori Takeda

Toshio Kakihara

Toru Tsuji

Tadashi Shimamoto

Yoshiaki Nakai

Yasushi Okinaka

Disclosed is an antibacterial agent composition which is highly safe and has excellent antibacterial abilities, by using a silicon-containing compound that is obtained by a specific manufacturing method. The antibacterial agent composition has a more stable antibacterial component, and is capable of imparting antibacterial abilities to teeth, while being also capable of cleaning an article or the mouth. Also disclosed are: an antiviral agent composition which is highly safe and has excellent virus deactivation abilities; an antibacterializing method, a cleaning/mouth rinsing method, each using the antibacterial agent composition or the antiviral agent composition; and a method for fixing an antibacterial agent or an antiviral agent. The antibacterial agent composition may contain a silicon-containing compound which is represented by general formula (1) and obtained by reacting a specific triethoxysilyl compound in an ethanol solvent. 

Antibacterial agent composition and antiviral agent composition comprising silicon-containing compound; antibacterializing method, cleaning/mouth rinsing method; method for fixing antibacterial agent and antiviral agent

Provided herein is a method for disinfection or infection control against a non-enveloped virus using a composition including, as an active ingredient, a persimmon extract containing tannin from an astringent fruit of a plant of the genus, such as the plant. The non-enveloped virus is a non-enveloped virus belonging to the genus Betanodavirus, Aquavirnavirus, Ranavirus, Enterovirus, Mastadenovirus, Vesivirus, or Rotavirus. In certain embodiments, the persimmon extract is prepared by heating a squeezed juice or an extract from an astringent fruit of a plant of the genus, or obtained by treating a squeezed juice or an extract from an astringent fruit of the plant of the genuswith an alcohol, in order to inactivate an enzyme contained therein. The persimmon extract may also contain at least condensed tannin.

Method for disinfection or infection control against a non-enveloped virus

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Hiroshima, Japan

Takemasa Sakaguchi