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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Agarose gel electrophoretic detection of six beta-lactam antibiotic residues in milk.

An electrophoretic method coupled with bioautography was developed for detection and identification of penicillin G, ampicillin, amoxicillin, cloxacillin, cephapirin, and ceftiofur residues in milk. The method uses a 2% agarose gel for electrophoresis, an overlay of PM indicator agar seeded with Bacillus stearothermophilus var. calidolactis, and incubation at 55 degrees C for 16-18 h. The new method separated and detected residues in milk at the levels of concern for the Food and Drug Administration (FDA) for penicillin G (5 ppb), cephapirin (20 ppb), and ceftiofur (50 ppb). The method also detected ampicillin, amoxicillin, and cloxacillin at 20, 30, and 30 ppb, respectively, but these levels are above those of concern for FDA (10 ppb).[1]

References

  1. Agarose gel electrophoretic detection of six beta-lactam antibiotic residues in milk. Cutting, J.H., Kiessling, W.M., Bond, F.L., McCarron, J.E., Kreuzer, K.S., Hurlbut, J.A., Sofos, J.N. Journal of AOAC International. (1995) [Pubmed]
 
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