Bacteriocidal Effect of Chamical Sanitizers on Natural Microflora and Pathogenic Bacteria in Fish

화학적 살균소독제를 활용한 생선중 존재하는 자연균총 및 주요 식중독균 제어

  • Kim Il-Jin (Department of Food Science and Technology Chung-Ang University) ;
  • Kim Yong-Soo (Korea Health Industry Development Institute) ;
  • Ha Sang-Do (Department of Food Science and Technology Chung-Ang University)
  • Published : 2006.06.01

Abstract

In this study, we evaluated bacteriocidal effect of CaO (scallop shell powder) for the reduction of microorganism in Scomber japonicus and Pseudosciaena ciean manchurica, and compared with main chemical sanitizers such as chlorine, ethanol, hydrogen peroxide. As a result, the effectiveness of CaO showed dramatic reduction rate for total aerobic bacteria, Escherichia coli and Vibrio parahaemolyticus. The reduction rates of total aerobic bacteria for Scomber japonicus and Pseudosciaena ciean manchurica showed $2.6{\times}10^3\;and\;3.2{\times}10^4$ respectively; Those of Escherichia Coli were $6.3{\times}10^3\;and\;1.2{\times}10^4$, those of Vibrio parahaemolyticus were $5.4{\times}10^4\;and\;5.6{\times}\2.6{\times}10^310^4$, respectively. According to this result, bacteriocidal effect of CaO was about $10^4$ and was similar to bacteriocidal effects of other three chemical sanitizers. According to these results, CaO can alternate the currently used chemical sanitizers due to its natural origin as well as the effectiveness for sterilization.

본 연구에서는 천연물질유래 살균소독제인 CaO가 고등어와 참조기에 존재하는 자연균총, Escherichia coli, Vibrio parahaemolyticus에 미치는 살균소독효과를 관찰하였고 염소계, 주정, 과산화수소계 등과 같은 주요 화학적 살균소독제와 비교하였다. CaO 0.05%처리했을 때 고등어와 참조기의 총호기성균의 생균수 감소율은 $2.6{\times}10^3,\;3.2{\times}10^4$, E. coli는 $6.3{\times}10^3,\;1.2{\times}10^4$, V parahaemolyticus는 각각 $5.4{\times}10^4,\;5.6{\times}10^4$ 생균수 감소율을 보였다. CaO (0.05%)의 살균력은 일반적으로 사용되는 살균소독제인 염소계, 과산화수소계 보다 우수하지는 못하였으나 염소계 50 ppm과 유사하였고, V. parahaemolyticus의 경우에는 $10^4$정도 감소율을 보여 염소 100 ppm과 과산화수소계 0.5%와 대등한 효과였다. 본 연구에 따라 CaO는 기존의 화학적 살균제를 대체할 수 있는 좋은 천연물질 유래 살균소독제로 활용될 수 있을 것이다.

Keywords

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