HUMIDITY-DEPENDENT ANTIBACTERIAL POWDERY COMPOSITION, PROCESS FOR PRODUCING THE SAME, HUMIDITY- DEPENDENT ANTIBACTERIAL FOOD STORING ARTICLE AND METHOD OF STORING FOOD

摘要

A humidity-dependent antibacterial powdery composition of excellent applicability wherein a volatile oily antibacterial substance can be contained in high proportion; a process for producing the same; a humidity-dependent antibacterial food storing article; and a method of storing food. In particular, the humidity-dependent antibacterial powdery composition comprises a volatile oily antibacterial substance and a water- soluble film forming agent characterized in that the behavior of release of volatile oily 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 or dispersion 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.