PROBLEM TO BE SOLVED: To provide a bactricidal composition which has high safety and has an excellent biocidal effect even within the system in which a surfactant coexists, in addition to the satisfaction with the conditions of low environmental load.SOLUTION: The bactericidal composition contains Zingerberaceae Amomum group plant and/or its extract (A), a surfactant (B) and an inorganic peroxide (C).COPYRIGHT: (C)2007,JPO&INPIT【課題】安全性が高く、低環境負荷という条件をクリアしたうえで、界面活性剤が共存する系内においても優れた除菌効果を有する除菌用組成物の提供。【解決手段】(A)ショウガ科Amomum(アモマム)属植物及び/又はその抽出物、(B)界面活性剤、及び(C)無機過酸化物を含む除菌用組成物。【選択図】なし