Combination Effects of Potassium Sorbate and Sodium Benzoate with Sodium Chloride on the Growth of Bacillus subtilis

Bacillus subtilis의 생육에 미치는 식염과 Potassium Sorbate, Sodium Benzoate의 병용효과

  • Published : 1988.02.01


In order to investigate the combined effect of potassium sorbate and sodium benzoate and the synergistic effect of sodium chloride on bacterial cell growth inhibition, Bacillus subtilis was cultured with or without shaking in tryptone-glucose-yeast extract broth containing 0.1% potassium sorbate and/or 0.03% sodium benzoat, which are equivalent to half of the maximum permissible levels, respectively. The combined treatment of the two preservatives did not show any synergistic effect of tne growth inhibition of B. subtilis. Addition of 2% sodium chloride, however, showed remarkable synergistic effect on the growth inhibition of the bacterium by potassium sorbate.