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Growth Inhibitory Effects of Chloride Salts and Organic Acid Salts Against Food-Borne Microorganisms

Chloride염 및 유기산 칼슘염의 식중독 미생물에 대한 증식 억제 효과

  • 이나영 (전북대학교 응용생물공학부) ;
  • 김용석 (전북대학교 바이오식품 소재 개발 및 산업화 연구센터) ;
  • 신동화 (전북대학교 응용생물공학부)
  • Published : 2003.12.01

Abstract

The growth inhibitory effects of chloride salts and organic acid salts against six food-borne microorganisms (Bacillus cereus ATCC 11778, Escherichia coli O157:H7 ATCC 43894, Listeria monocytogenes ATCC 19111, Salmonella Typhimurium ATCC 14028, Staphylococcus aureus ATCC 25923, Vibrio parahaemolyticus ATCC 17802) were determined using Bioscreen C in broth medium. The growth inhibitory concentrations of sodium chloride and potassium chloride on B. cereus were 7 and 9%, respectively. E. coli O157:H7 and S. aureus were inhibited by treatment of 3% calcium chloride. Magnesium chloride showed growth inhibitory effect on B. cereus, S. Typhimurium, and S. aureus at 5%. The order of growth inhibition effects by organic acid salts was calcium propionate>calcium acetate>calcium lactate. Calcium chloride (3%) with 0.01% lactic acid showed strong inhibition on the growth of S. Typhimurium and exhibited stronger growth inhibition than calcium chloride alone (5%). We concluded that calcium chloride and calcium propionate had strong growth inhibitory activities and that calcium chloride and sodium chloride in combination with lactic acid had stronger inhibitory activities than that of chloride salts alone.

Chloride염 및 유기산 칼슘염을 농도별로 첨가하여 배양할 때 6종의 식중독 미생물에 대한 증식 억제 효과를 Bioscreen C(600 nm)를 이 용하여 시험 하였다. E. cereus는 sodium chloride 7% 또는 potassium chloride 9% 처리시 증식이 관찰되지 않았다. Calcium chloride는 3% 농도에서 E. coli O157:H7과 S. aureus의 증식이 관찰되지 않았다. Magnesium chloride는 5% 농도에서 B. cereus, S. Typhimurium 및 S.aureus의 증식을 억제하였다. 유기산 칼슘염의 식중독 미생물에 대한 증식 억제 효과는 calcium propionate>calcium acetate>calcium lactate 순으로 나타났다. S. Typhimurium은 calcium chloride 단독 처리 할 때는 5% 이상 농도에서 증식이 관찰되지 않았으나, calcium chloride 3%와 젖산 0.01%를 병용할 때 같은 효과가 나타나 단독 사용할 때 보다 병용에 따른 상승효과가 큰 것으로 나타났다.

Keywords

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