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KMID : 1023520000230020105
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Korean Journal of Veterinary Service
2000 Volume.23 No. 2 p.105 ~ p.112
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Survey on the microbiological quality of meat in Seoul
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Byun Jung-Ok
Mo Eui-Won
Moon Ho-Pan
Lee Yang-Soo
Lee Byung-Dong
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Abstract
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This survey was conducted to evaluate the microbiological quality of raw beef and pork products from January to December in 1999. A total of 107 beef and 157 hog carcasses were collected from two abattoirs located in Seoul. The result showed that beef carcasses had an average bacterial loading around 139,000 bacteria/ of carcass surface, indicating a little bit higher count than the results reported in USA and Australian meat. However, overall hygienic status was found to be acceptable for all examined carcasses because 84.4% of product rated excellent, good or acceptable comparable to USA of 91.6% and Australia of 88%. The analysis of data on overnight-chilled to weekend-chilled carcasses indicated that the microbiological growth occurred in the chiller during the weekend chill with increases in total viable count from 130,000cfu/ to 400,000cfu/. Qualitative testing for escherichia coli, EC + MUG was used as a most probable number (MPN) method along with the petrifilm method. The average of MPN/ of E coli biotype 1 was 29MPN/ for beef carcasses and 1,100 MPN/ for hog carcasses, respectively. However, 41% of beef and 16.3% of hog carcasses were shown to be less than < 3 MPN/ in E coli biotype 1 examination. Although salmonella enteritis, S typhimurium and E coli O157:H7 were all negative, listeria monocytogenes was recovered from only one hog surface samples of the 89 carcasses tested.
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KEYWORD
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Microbiological Qualify, Raw beef and pork, Most probable number(MPN)
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