Abstract
1. The authors investigated on the antimicrobial activities of iodine using the following microorganisms: 22 strains of microorganisms, 13 strains of molds, 3 strains of yeast, 1 strain of actinomycetes and 5 strains of bacteria.
2. From the experimental results, the chemical under investigation showed marked antimicrobial activities against all strains except Bacillus subtilis IAM 1143.
3. The growth of all strains belonging to yeast, actinomycetes and bacteria except B. subtilis IAM 1143 was inhibited at the concentration range of 10ppm to 50ppm for 15 sec. to 10min.
4. The growth of Escherichia coli IAM 1239 was inhibited at the concentration of 10ppm for 1 min. or 50ppm for 15 sec., and that of Staphylococcus aureus IAM 1011 at the concentration of 25ppm for 1min. or 50ppm for 15 sec.
5. The growth of Trichophyton mentagrophytes IAM 5064 was inhibited at the concentration of 10ppm for 1min. or 25ppm for 15 sec. and four strains of molds isolated from the fresh beef were also affected at the concentration of 25ppm to 100ppm for 2.5min.
