Abstract: The humidity-dependent antibacterial powdery composition comprises a volatile oily antibacterial substance contained in a high ratio and a water-soluble film forming agent and the behavior of release of the antibacterial substance is changed depending on humidity. The process for producing the same is characterized in that a water-soluble film forming agent optionally together with a powder vehicle is dissolved and/or dispersed in water, subsequently a volatile oily antibacterial substance optionally together with an emulsifying agent is added to the solution and emulsified, and thereafter the obtained emulsion is spray dried into powder. The humidity-dependent antibacterial food storing article is characterized by carrying the humidity-dependent antibacterial powdery composition. The method of storing food is characterized in that the volatile oily antibacterial substance is released from the humidity-dependent antibacterial food storing article toward food lying in an atmosphere of 70% or higher humidity.

Abstract: The process for producing pickles of the invention comprises using an oil-in-water antimicrobial composition that contains allyisothiocyanate as the active ingredient and further contains surfactant and water added thereto, in any stage of producing pickles. The invention provides a process for stably producing pickles of good quality while taking suitable measures for surely suppressing the growth of microbes in producing pickles in a simplified manner. The antimicrobial composition of the invention comprises allyl isothiocyanate and a beta acids-containing hop extract as the active ingredients. This is useful as a food freshness-keeping agent free from all the problems with conventional AIT and hop extract each other.

Abstract: An object of the present invention is to provide a humidity-dependent antibacterial powdery composition of excellent applicability wherein a volatile oily antibacterial substance can be contained in high ratio; a process for producing the same; a humidity-dependent antibacterial food storing article; and a method of storing food. The humidity-dependent antibacterial powdery composition of the present invention as means of attaining the object is characterized in that it comprises a volatile oily antibacterial substance and a water-soluble film forming agent and the behavior of release of the antibacterial substance is changed depending on humidity.

Abstract: The process for producing pickles of the invention comprises using an oil-in-water antimicrobial composition that contains allyisothiocyanate as the active ingredient and further contains surfactant and water added thereto, in any stage of producing pickles. The invention provides a process for stably producing pickles of good quality while taking suitable measures for surely suppressing the growth of microbes in producing pickles in a simplified manner. The antimicrobial composition of the invention comprises allyl isothiocyanate and a beta acids-containing hop extract as the active ingredients. This is useful as a food freshness-keeping agent free from all the problems with conventional AIT and hop extract each other.

Abstract: A controlled release composition comprising a volatile compound such as allyl isothiocyanate and a rosin in a proportion of 0.1 to 100 parts by weight of the compound per 100 parts by weight of the rosin, the controlled release composition further comprising a plasticizer, and the controlled release composition laminated on a substrate or in other forms. The AIT controlled release composition of the present invention can be used for emission of aroma, antimicrobial effect, antibacterial effect, insecticidal action, insectproof effect, fungicidal action, fungiproof action, freshness retention, antiseptic or preservative effect and the like.

Abstract: An antimicrobial composition comprising AIT and a polyhydric alcohol which may have aldehyde group or ketone group; an antimicrobial composition comprising a surfactant and said composition; a method for treating microorganisms; and a method for retaining freshness of vegetables, etc., both of which methods comprising treating the target substances such as perishables with the composition of the present invention or an aqueous solution containing said composition.