Characteristics of Yersinia enterocolitica Isolated from Frozen Foods

냉동식품에서 분리한 Yersinia enterocolitica의 특성

  • Lim, Soon-Young (Department of Food and Nutrition, Dongduk Women's University) ;
  • Yoon, Suk-Kwon (Department of Food and Nutrition, Dongduk Women's University)
  • 임순영 (동덕여자대학교 식품영양학과) ;
  • 윤석권 (동덕여자대학교 식품영양학과)
  • Published : 2000.12.30

Abstract

Overall prevalence of Y. enterocolitica in frozen foods was 5.6% (35 cases of 624 samples). Seasonal variation of contamination was observed. Isolation rate of Y. enterocolitica from samples collected in the second half of the year was six times higher than those of the first half of the year. Serotype of the isolated Y. enterocolitica was mainly serotype O:5 (9 cases). However, 25 cases of 35 isolates could not be serotyped with antiserum used in this study. The biotype test showed that all isolates were non-pathogenic type 1A. The polymerase chain reaction test with ail gene specific primers also confirmed that pathogenic strains were not found in frozen food isolates.

Keywords

Y. enterocolitica;frozen foods;serotype;polymerase chain reaction;pathogenic;biotype