Hiroshima University

Altan Co., Ltd.

Tadashi Shimamoto

Toru Tsuji

Yoshiaki Nakai

Takemasa Sakaguchi

Yasushi Okinaka

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

An anti-norovirus agent that has high norovirus-inactivating activity and is safe for the human body, and an anti-norovirus composition that contains the anti-norovirus agent and is useful for disinfection and infection control against the norovirus. The anti-norovirus agent includes, as an active ingredient, an extract from a plant of the genuscontaining tannin (hereinafter referred to as a 'persimmon extract'), preferably a persimmon extract produced by heating squeezed juice or an extract from the fruit of a plant of the genusor treating the squeezed juice or the extract with an alcohol. The anti-norovirus composition contains the anti-norovirus agent and at least one selected from the group consisting of alcohols, surfactants, antimicrobial agents, humectants, and cosmetic fats and oils, and preferably further containing an organic acid, such as citric acid, and/or a salt thereof or vitamin C.

Method of disinfection or infection control against norovirus

Provided is an anti-norovirus agent that has high norovirus-inactivating activity and is safe for the human body, and an anti-norovirus composition that contains the anti-norovirus agent and is useful for disinfection and infection control against the norovirus. The anti-norovirus agent includes, as an active ingredient, an extract from a plant of the genuscontaining tannin (hereinafter referred to as a 'persimmon extract'), preferably a persimmon extract produced by heating squeezed juice or an extract from the fruit of a plant of the genusor treating the squeezed juice or the extract with an alcohol. The anti-norovirus composition contains the anti-norovirus agent and at least one selected from the group consisting of alcohols, surfactants, antimicrobial agents, humectants, and cosmetic fats and oils, and preferably further containing an organic acid, such as citric acid, and/or a salt thereof or vitamin C.

Growing community of inventors

Higashihiroshima, Japan

Tadashi Shimamoto