Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Effect of Ozone Water to Reduce Pathogenic Microorganisms on Chopping Board

도마표면의 병원성미생물 제어를 위한 오존수 처리효과

  • Published : 2009.04.30
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Abstract

The efficacy of ozone water in reducing food-borne pathogenic bacteria on High Density Polyethylene (HDPE) and wooden chopping boards in food industry was investigated in this study. 1-5 log reductions of E. coli O157:H7, S. aureus, S. Typhimurium, and B. cereus were observed with increasing concentrations of ozone water. The immersion treatment evidenced superior capability to inactivate food-borne pathogens than washing treatment. The Gram-negative bacteria, such as E. coli O157:H7 and S. Typhimurium, evidenced lower resistance against ozone water than was seen with the gram-positive bacteria, which included S. aureus and B. cereus. The sterilizing effects of ozone water on HDPE chopping boards was superior to that on wooden boards. This result might be utilized to remove food-borne pathogens from food contact surfaces in the food industry.

식품 및 식품접촉 표면의 식중독균을 제어하기 위해 오존수를 사용하는 사례가 증가하고 있다. 본 연구는 HDPE 도마와 나무도마에 오염된 식중독균 제거를 위해 오존수 처리의 살균효과를 평가하였다. E. coli O157:H7, S. aureus, S. Typhimurium, B. cereus 모두 오염원 도마 표면을 오존수로 처리 시 농도 증가에 따른 1-5 log의 살균력이 관찰되었고, 세척보다는 침지 처리가 살균력이 높았다(p<0.05). E. coli O157:H7, S. Typhimurium 등 그람 음성균이 S. aureus, B. cereus 등 그람양성균보다 오존수에 대한 저항성이 낮았으며, 나무도마보다 HDPE 도마에서 더 높은 살균력을 보였다. 본 연구 결과는 식품가공공장의 식품접촉 표면 식중독 미생물 제어에 효과적으로 활용될 것이다.

Keywords

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