Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
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Effect of temparature and salinity on the multiplication of Vibrio vulnificus

수온과 염분농도가 Vibrio vulnificus 증식에 미치는 영향

  • Published : 2006.04.01
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Abstract

To analyze the safety of shellfish from the Vibrio vulnificus contamination, we investigated the multiplication of V. vulnificus in oysters keeping at different temperatures with or without shell. The numbers of V. vulnificus contaminated in oysters were more than that in artificial sea water (ASW) after artificial infection. The storage-temperature had an effect on multiplication of V. vulnificus in oysters, because the number of V. vulnificus was started to increase rapidly from just after keeping at 25℃ but no significant variation was observed at 4℃ throughout the experiment periods. In different salinity, using ASW of 5, 15, 35 ‰, the number of V. vulnificus was decreased at both 25℃ and 4℃. However, the rate of decreasing at 4℃ was faster than that 25℃. Additional, changed salinity also influenced to the decreasing rate of V. vulnificus keeping 4℃ as the highest rate in 35 ‰ ASW.

V. vulnificus 오염으로부터 패류의 안전성을 조사하기 위해 굴을 V. vulnificus에 인위감염시키고 4℃와 25℃에서 패각 유무에 따른 V. vulnificus 균수 변화를 조사하였다. V. vulnificus가 있는 인공해수에 침지시킨 굴에서 분리된 V. vulnificus 균수는 인공해수 속의 균수보다 많았다. 굴을 4℃에 보관하는 경우는 실험기간 동안 V. vulnificus 균수의 차이가 관찰되지 않았지만 25℃에 보관하는 경우는 빠른 균수의 증가가 관찰되어 보관온도가 균수 변화에 많은 영향을 주었다. 여러 염분농도, 5, 15 및 35 ‰의 인공해수에서 V. vulnificus 균수는 25℃와 4℃에서 모두 감소하였다. 그러나 4℃에서 균수의 감소율은 25℃에서 보다 빨랐고 4℃에서 염분도 V. vulnificus 균수 감소율에 영향을 주어 35 ‰의 인공해수에서 가장 높은 감소율을 보였다.

Keywords

References

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