塩化カリウムとソルビン酸カリウムの各種細菌に対する併用効果について
1985 年 18 巻 3 号 p. 181-185
詳細
1985 年 18 巻 3 号 p. 181-185
Synergistic effect of potassium chloride (KCl) and potassium sorbate (SoK) was examined on the growth of twelve strains of bacteria. The antibacterial examination was carried out at 35for 50hours in tryptosoy broth at pH7, containing 0,3,5% KCl and 0,0.05,0.10, and 0.20 % SoK., respectively. The results were as follows:
1. The synergistic effect of KCl and SoK. on the extension of lag phase was recognized with the co-existence of 3% KCl and 0.2% SoK. in growth media for B. cereus, E. cloacae and B. megaterium.
2. The same effect of these compounds on the depression of growth rate was recognized with the co-existense of 5% KCl and 0.2% SoK. for B, megaterium, E. cloacae, K. aercgenes, P. aeruginosa and H. alvei.
3. It was found that B. megaterium and P. aeruginosa were the most sensitive and, on the other hand, B. cereus, B. subtilis, M. luteus and St. aureus were the most resistant to KCl and SoK.
