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Quantification of Vibrio parahaemolyticus Using a Most Probable Number-Polymerase Chain Reaction Assay Targeting the H-NS gene

MPN 및 H-NS 유전자를 표적으로 하는 PCR assay를 병용한 장염비브리오(Vibrio parahaemolyticus)의 정량

  • Kim, Tae-Ok (Department of Food Science and Biotechnology, Kunsan National University) ;
  • Park, Kwon-Sam (Department of Food Science and Biotechnology, Kunsan National University)
  • 김태옥 (군산대학교 식품생명공학과) ;
  • 박권삼 (군산대학교 식품생명공학과)
  • Received : 2014.09.26
  • Accepted : 2014.10.08
  • Published : 2014.10.31

Abstract

We applied a combination of most probable number-polymerase chain reaction (MPN-PCR) methods using a PCR procedure targeting the H-NS (VP1133) gene to detect Vibrio parahaemolyticus presence and density in seawater as well as within short-necked clam Ruditapes philippinarum tissues collected from Gomso Bay, Korea. In 30 seawater samples, V. parahaemolyticus levels ranged from less than 1.8 to $1.1{\times}10^3MPN/100mL$, and samples from August showed higher than those from other months. Furthermore, the levels of V. parahaemolyticus in six short-necked clam samples ranged from $7.8{\times}10^2$ to $2.1{\times}10^3MPN/100g$, approximately 2.5 times higher than in seawater samples from the corresponding month. Our results provide data on V. parahaemolyticus contamination in seawater and short-necked clam tissues, and help to improve quantitative methods of assessing V. parahaemolytcius levels.

Keywords

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