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EEC 4-Plate Test 의 식육중 항균물질 검출감도와 항균물질 계열별 검출능 비교 조사
조병훈,진남섭,손성완,강환구,이혜숙,김재학,김봉환 한국식품위생안전성학회 1996 한국식품위생안전성학회지 Vol.11 No.4
The European Economic Community four plate test(EEC 4-plate test, FPT, EU) has been used for monitoring antimicrobial drug residues in meat by Local Veterinary Service Center in Korea. This study was performed to evaluate sensitivity and group specificity of some antimicrobial drugs in FPT and to compare FPT with Charm II test. The minimal detectable levels of targeted antimicrobial drugs tested with standard solutions were 0.025-1.0 ppm for 7 beta-lactams, 0.5-1.0 ppm for 4 aminoglycosides, 0.05-0.5 ppm for 5 macrolides, 0.05-0.25 ppm for 3 tetracyclines and 0.25-1.0 ppm for 6 sulfonamides. In identification of the families, five families of antimicrobial drugs were identified. In this case, beta-lactams, aminoglycosides, macrolides, tetracyclines and sulfonamides could be detectable. In comparison of FPT and Charm II test, the results of FPT were not accord with those of Charm II test having the group specificity of seven families of antimicrobial drugs in meat samples except some families like tetracyclines.
가축의 설사변에서 분리한 대장균과 살모넬라균의 항균물질 감수성과 마우스에서의 치료효과
김종만,진남섭,김종완,진영화,이희수,권창희,우승룡,이해천,박종명,김재학,이재진,Kim, Jong-man,Jean, Nam-seop,Kim, Jong-wan,Jean, Young-hwa,Lee, Hee-soo,Kweon, Chang-hee,Woo, Sung-ryong,Lee, Hae-chon,Park, Jong-myung,Kim, Jae-hak,Rhee, J 대한수의학회 1997 大韓獸醫學會誌 Vol.37 No.2
Survey on MIC of antimicrobial drugs and its treatment efficacy in mice were conducted for the strains of Escherichia coli and Salmonella spp isolated from feces of young domestic animals with diarrhea in 1996. A total of 338 strains of E coli and 61 strains of Salmonella spp were examined for the susceptibility to 20 antibiotics and 7 synthetic antimicrobial drugs. The results indicated that the majority of strains were susceptible to amikacin(93.5%), cefoperazone/sulbactam(93.5%), cefotaxim(93.3%), cefomandole(92.8%), cefoperazone(91.6%) and ciprofloxacin(85.1%), in order. Although gentamicin, ciprofloxacin and norfloxacin showed the relatively low MIC distributions, erythromycin, doxycycline, sulfamethoxazole and oxytetracycline revealed the high MIC distributions to most of isolates. The $MIC_{90}$ of antimicrobials for E coli were > $62.5{\mu}g/ml$ in gentamicin, $2.0{\mu}g/ml$ in ciprofloxacin, $1.0{\mu}g/ml$ in norfloxacin, > $500{\mu}g/ml$ in erythromycin, $125{\mu}g/ml$ in doxycycline, > $1000{\mu}g/ml$ in sulfamethoxazole and > $250{\mu}/ml$ in oxytetracycline. In general, the MIC of E coli isolates was higher than that of Salmonella spp isolates. Although variation in synergism or additivity of antibiotic combinations were demonstrated, ampicillin-gentamicin was the most efficacious combination both against E coli and Salmonella spp with the fluctuation of 7.7-77.5%. In the experiment of treatment efficacy in mice, the highest survival ratio(83.3%) after challenge with pathogenic E coli and Salmonella typhimurium was detected in the group treated with gentamicin.
식육중 잔류 향균물질의 검출을 위한 Bacillus megaterium 디스크 검사킷트 개발
손성완,조병훈,진남섭,이혜숙,윤순학,김재학,이재진,이영순 한국식품위생안전성학회 1996 한국식품위생안전성학회지 Vol.11 No.4
Various antimicrobial drug screen tests have been used in order to ensure food safety. However, the conventional screen tests, the Swab Test on Premises(STOP, USA), the Calf Antibiotic and Sulfa Test(CAST, USA) and the European Economic Community 4-plate Test(FPT, EU) are not sufficiently rapid or sensitive enough to detect low levels of sulfa drugs in meat. We developed a new screen test kit for the determination of the antimicrobial residues in meat called the Bacillus megaterium Disk Assay(BmDA). A comparison of BmDA with the older screen tests showed BmDA was as good as the older ones with several advantages. The new test kit is faster-it can be read in 4∼6 hours instead of 16∼18 hours. Moreover, BmDA can discriminate sulfa drugs from other antimicrobial drugs because p-aminobenzoic acid countacts the inhibiting action of sulfa drugs. Minimum detectable levels of sulfa drugs were significantly improved at the lever of 0.025*0.1 pp, compared with the level of 1.0 ppm in FPT. A comparison of BmDA with the older screen tests in HPLC confirmed meat samples exceeded the Korean tolerance value of 0.1 ppm showed BmDA was the most sensitive in the microbiological screen tests. As the microbiological screen tests have already known, a person familiar with simple laboratory techniques should have no difficulty in using it to detect antimicrobial residues in meat. This would be a simple, economic method of antimicrobial residues detection which might be succesfully used by many laboratories.
식육중 잔류 항균물질의 검출을 위한 Bacillus megaterium 디스크 검사킷트 개발
손성완,조병훈,진남섭,이혜숙,육순학,김재학,이재진,이영순 한국식품위생안전성학회 1996 한국식품위생안전성학회지 Vol.11 No.4
Various antimicrobial drug screen tests have been used in order to ensure food safety. However, the conventional screen teats, the Swab Test on Premises(STOP, USA), the Calf Antibiotic and Sulfa Teat(CAST, USA) and the European Economic Community 4-plate Test(FPT, EU) are not sufficiently rapid or sensitive enough to detect low levels of sulfa drugs in meat. We developed a new screen test kit for the determination of the antimicrobial residues in meat called the Bacillus megaterium Disk AssayBmDA). A comparison of BmDA with the older screen tests showed BmDA was as good as the older ones with several advantages. The new test kit is faster-it can be read in 4-6 hours instead of 16-18 hours. Moreover, BmDA can discriminate sulfa drugs from other antimicrobial drugs because p-aminobenzoic acid countacts the inhibiting action of sulfa drugs. Minimum detectable levels of sulfa drugs were significantly improved at the level of 0.025-0.1 ppm compared with the level of 1.0 ppm in FPT. A comparison of BmDA with the older screen tests in HPLC confirmed meat samples exeeded the Korean tolerance value of 0.1 ppm showed BmDA was the most sensitive in the microbiological screen tests. As the microbiological screen tests have already known, a person familiar with simple laboratory techniques should have no difficulty in using it to detect antimicrobial residues in meat. This would be a simple, economic method of antimicrobial residues detection which might be succesfully used by many laboratories.