Occurrence of toxigenic Staphylococcus aureus in ready-to-eat food in Korea
- Authors
- Oh, Su Kyung; Lee, Nari; Cho, Young Sun; Shin, Dong-Bin; Choi, Soon Young; Koo, Minseon
- Issue Date
- May-2007
- Publisher
- INT ASSOC FOOD PROTECTION
- Citation
- JOURNAL OF FOOD PROTECTION, v.70, no.5, pp 1153 - 1158
- Pages
- 6
- Journal Title
- JOURNAL OF FOOD PROTECTION
- Volume
- 70
- Number
- 5
- Start Page
- 1153
- End Page
- 1158
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/14697
- DOI
- 10.4315/0362-028X-70.5.1153
- ISSN
- 0362-028X
1944-9097
- Abstract
- Toxigenic Staphylococcus aureus contamination in ready-to-eat (RTE) food is a leading cause of foodborne illness in Korea. To monitor food contamination by S. aureus, a total of 3,332 RTE food samples were selected from nationwide wholesale marts between 2003 and 2004 and examined. A total of 285 (8.6%) of the overall samples were contaminated by S. aureus. According to the analysis, 31.6% of the tested cream-cakes, 19.8% of the raw fish, and 19.3% of the rice cakes with filling were contaminated with S. aureus. Forty-seven percent of the strains isolated from the contaminated food were enterotoxigenic S. aureus. The phenotypic result of the strain isolated from food showed that 48% of the strains produced one or more toxins, such as staphylococcal enterotoxins A, B, and C (SEA, SEB, and SEC). At least one SEA was produced by over 90% of the toxigenic strains. Other toxins, such as SEB, SEC, SED, SEA+SEC, and SEC+SED, were each detected. Toxic shock syndrome toxin I (TSST-1), a causative agent of toxic shock syndrome, was detected in 13 strains of the toxigenic isolates from the food. As the result of genotyping, 22 strains with a toxin gene that was not detected in the phenotypic analysis were also detected. Sixty-nine percent of the toxigenic strains had at least one sea gene, and the most prevalent genotype was sea+seh (34.4%), followed by sea (18.8%) and sea+seg+sei (15.6%). The tst gene encoding TSST-1 was found in 13 strains (13.5%). The genes (eta and etb) encoding exfoliative toxins A and B were not detected in any of the samples.
- Files in This Item
-
Go to Link
- Appears in
Collections - 이과대학 > 생명시스템학부 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.