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      • KCI등재

        식육중 잔류항균물질 비교 조사 -서울지역 도축 소와 돼지를 중심으로-

        변정옥 ( Jung Ok Byun ),강영일 ( Young Il Kang ),이달주 ( Dal Ju Lee ),황래홍 ( Lae Hong Hwang ),이양수 ( Yang Soo Lee ),이병동 ( Byung Dong Lee ) 한국가축위생학회 2002 韓國家畜衛生學會誌 Vol.25 No.3

        This study was carried out to compare the residual antibiotic materials in muscles of slaughter cattle and swine from slaughterhouses in Seoul from 2000 to 2001 by EEC-4-plate method, Charm Il and HPLC method. 1. Residual antibiotic materials were detected from 95 samples(0.8%) by EEC-4-plate and 57 samples(10.2%) by Charm Il. The final HPLC method determined the positives are 43(45.3%) and 27(47.3%) respectively. 2. The detection ratios were 45% by EEC-4-plate and 47% by Charm Il. 3. Seventy samples were classified as tetracyclines 56(75.7.4%), sulfonamides 10(14.9%), β-lactam 6(8.1%) chloramphenicol 1(1.4%). Three of them were confirmed to be positive simmultaneously for tetracyclines, sulfonamides and chloramphenicol. 4. The highest residual concentration of chlortetracycline, oxytetracycline, sulfamethazine, sulfadimethoxine, sulfaquinoxaline, penicillin, ampicillin and chloramphenicol were 0.34, 11.29, 68.16, 0.13, 4.0, 0.12, 0.4 and 0.04ppm, respectively.

      • KCI등재

        소,돼지 도체표면의 미생물학적 고찰

        변정옥 ( Jung Ok Byun ),모의원 ( Eui Won Mo ),문호판 ( Ho Pan Moon ),이양수 ( Yang Soo Lee ),이병동 ( Byung Dong Lee ) 한국가축위생학회 2000 韓國家畜衛生學會誌 Vol.23 No.2

        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/ca` 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/cn? to 400,000cfu/cm2. 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/cm2 of E coli biotype 1 was 291VIPN/cm2 for beef carcasses and 1,100 MPN/cm2 for hog carcasses, respectively. However, 41% of beef and 16.3% of hog carcasses were shown to be less than <3 MPN/cm2 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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