PROBLEM TO BE SOLVED: To provide an agent for inhibiting the germination and proliferation of spores of spore-forming bacteria, and a spore germination proliferation inhibition method.SOLUTION: An agent for inhibiting the germination and proliferation of spores of spore-forming bacteria contains methylglyoxal as an active ingredient. A method for inhibiting the germination and proliferation of spores of spore-forming bacteria includes bringing the agent into contact with a target.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】 芽胞形成菌の芽胞発芽増殖抑制剤、及び芽胞発芽増殖抑制方法を提供すること。【解決手段】 メチルグリオキサールを有効成分とする芽胞形成菌の芽胞発芽増殖抑制剤、及び前記芽胞発芽増殖抑制剤を対象物と接触させることを特徴とする芽胞形成菌の芽胞発芽増殖抑制方法を提供する。【選択図】 なし