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Pakistan Journal of Biological Sciences
  Year: 2008 | Volume: 11 | Issue: 18 | Page No.: 2282-2285
DOI: 10.3923/pjbs.2008.2282.2285
 
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The Detection Limits of Antimicrobial Agents in Cow`s Milk by a Simple Yoghurt Culture Test

M. Mohsenzadeh and A. Bahrainipour

Abstract:
The aim of this study was to study performance of Yoghurt Culture Test (YCT) in the detection of antimicrobial residues in milk. For this purpose, the sensitivity of YCT for 15 antibiotics were determined. For each drug, 8 concentrations were tested. The detection limits of YCT at 2.5 h and 4 h incubation were determined (μg kg-1): 15 and 37.5, penicillin G; 4 and 5, ampicillin; 5 and 7.5, amoxycillin; 100 and 200, cephalexin; 80 and 100, cefazoline; 100 and 200, oxytetracycline; 500 and 100, chlortetracycline; 100 and 200, tetracycline; 150 and 200, doxycycline; 200 and 400, sulphadimidine; 500 and 1000, gentamycin; 1000 and 1500, spectinomycin; 400 and 500, erythromycin; 50 and 100, tylosin; 5000 and 10000, chloramphenicol. The YCT detection limits at 2.5 h incubation for ampicillin, cephalexin, tetracycline, oxytetracycline and tylosin are similar to those obtained as Maximum Residue Limit (MRL) according to Regulation 2377/90 EEC as set out by the European Union. In addition the detection limits of YCT for some antibiotics were lower than some of microbial inhibitor test.
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How to cite this article:

M. Mohsenzadeh and A. Bahrainipour, 2008. The Detection Limits of Antimicrobial Agents in Cow`s Milk by a Simple Yoghurt Culture Test. Pakistan Journal of Biological Sciences, 11: 2282-2285.

DOI: 10.3923/pjbs.2008.2282.2285

URL: https://scialert.net/abstract/?doi=pjbs.2008.2282.2285

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