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Bactericidal Effects of Hypochlorous Acid Water against Vibrio parahaemolyticus Contaminated on Raw Fish and Shellfish

어패류에 오염된 장염비브리오균(Vibrio parahemolyticus)에 대한 차아염소산수의 살균효과

  • Kim, Hee-Yun (Department of Foodservice Management, Woosong University) ;
  • Choi, Jin-Kyung (Department of Foodservice Management, Woosong University) ;
  • Shin, Il-Shik (Department of Marine Food Science and Technology, Gangneung-Wonju National University)
  • 김희연 (우송대학교 외식산업경영학과) ;
  • 최진경 (우송대학교 외식산업경영학과) ;
  • 신일식 (강릉원주대학교 해양식품공학과)
  • Received : 2015.10.07
  • Accepted : 2015.11.25
  • Published : 2015.12.31

Abstract

The bactericidal effects of strongly acidic hypochlorous acid water (StAHA) and slightly acidic hypochlorous acid water (SlAHA) against Vibrio parahaemolyticus contaminated on surface of raw fish and shellfish were examined. V. parahaemolyticus contaminated with about 7.0 log CFU/g on the meat chunk of olive flounder (Paralichthys olivaceus), and yellow tail (Seriola quinqueradiata), and 4.0 log CFU/g on the shucked scallop (Patinopecten yessoensis) were not detected after washing with StAHA and SlAHA at a ratio of 30:1 on a sample weight basis. However, 1.0 log CFU/g of V. parahaemolyticus was survived on shucked oyster (Crassostrea gigas) under same treatment conditions. The bactericidal effects of acidic hypochlorous acid water against V. parahaemolyticus contaminated on surface of shucked oyster were not as effective as those against V. parahaemolyticus contaminated on surface of meat chunk of olive flounder, yellow tail, and shucked scallop. Such differences can be attributed to the complicated surface conformation of oyster.

넙치, 방어 어류 2종과 가리비, 참굴 패류 2종에 수산식품의 주요 식중독균인 장염비브리오균(V. parahaemolyticus)을 인위적으로 오염시킨 후, 강산성차아염소산수와 미산성차아염소산수의 살균효과를 조사한 결과를 요약하면 다음과 같다. 넙치에 장염비브리오균을 인위적으로 오염시킨 후, 강산성차아염소산수 및 미산성차아염소산수 공히 10배의 양으로 세정한 결과, 약 4.0 log가 감소하였으며, 30배의 양으로 세정한 경우, 검출한계 이하로 나타나 강력한 살균효과가 있는 것을 확인하였으며 방어에 있어서도 넙치와 비슷한 결과를 확인하였다. 가리비에 장염비브리오균을 인위적으로 오염시킨 후, 강산성차아염소산수 및 미산성차아염소산수 공히 10배의 양으로 세정한 결과, 약 4.2 log가 감소하였으며, 30배의 양으로 세정한 경우에는 장염비브리오균이 검출되지 않아 강력한 살균효과를 나타내었다. 참굴에 장염비브리오균을 인위적으로 오염시킨 후, 강산성차아염소산수 및 미산성차아염소산수 공히 10배의 양으로 세정한 결과, 약 3.8 log가 감소하였으며, 30배의 양으로 세정한 경우, 7.0 log가 감소하여, 강력한 살균효과가 있는 것을 확인하였지만 넙치, 방어, 가리비에 비해서는 살균효과가 다소 낮게 나타났다. 어류 근육이나 가리비에 비해 참굴에 오염된 장염비브리오균에 대한 차아염소산수의 살균효과가 다소 떨어지는 것은 참굴의 표면 구조의 복잡성 때문인 것으로 판단된다.

Acknowledgement

Supported by : 강릉원주대학교

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