| 摘要 |
PURPOSE: To obtain a biguanide-based antibacterial agent absolutely free from fungi in the agent and capable of preventing the secondary contamination of a food factory, etc., with fungus by adding a fungicide to a biguanide-based antibacterial agent. CONSTITUTION: This biguanide-based antibacterial agent contains a fungicide (especially preferably a halogen-containing nitrogen-sulfur compound or an isothiazoline compound). The biguanide-based antibacterial agent is chlorhexidine (for pharmaceutical use), polyhexamethylene biguanidine hydrochloride (for food factory), etc., and the agent exhibits antibacterial power against Gram-positive bacteria and Gram-negative bacteria at a low concentration. The content of the biguanide compound in the agent is 2-50%. Sufficient effect can be attained by adding the fungicide to the biguanide-based antibacterial agent in an amount of 50-5,000ppm for a halogen-containing nitrogen compound and 10-1,000ppm for an isothiazoline compound. There is no contamination of the antibacterial agent with fungi and the secondary contamination of a food factory, etc., caused by the contamination of the antibacterial agent can be prevented by the use of the antibacterial agent. |
