PROBLEM TO BE SOLVED: To provide an antimicrobial agent composition with high safety and showing an excellent antimicrobial action.SOLUTION: The antimicrobial agent composition contains the following components (A) and (B): (A) 5-50 mass% of ethanol and (B) 0.00625-0.2 mass% of catechins.COPYRIGHT: (C)2013,JPO&INPIT【課題】安全性が高く、且つ優れた抗菌作用を示す抗菌剤組成物を提供すること。【解決手段】次の成分(A)及び(B):(A)エタノール 5~50質量%、(B)カテキン類 0.00625~0.2質量%、を含有する抗菌剤組成物。【選択図】なし