| abstract |
PROBLEM TO BE SOLVED: To provide an AI-2 inhibitor having an inhibitory activity against an auto-inducer-2. SOLUTION: Copper chlorophyllin alkali metal salt, vitamin B 2 , tin fluoride, zinc chloride, and aluminum lactate are in a concentration range that does not exert antibacterial activity (that is, a concentration range that does not suppress the growth and / or growth of bacteria). When used, it exhibits excellent inhibitory activity against AI-2 and can be used as an active ingredient of AI-2 inhibitors. [Selection diagram] None |