<abstract xmlns="http://www.w3.org/1999/xhtml">

<p> Raw, inhibitors free milk was spiked with penicillin G, ampicillin, cloxacillin, and ceftiofur at the levels 1 × MRL, 1.5 × MRL, and 2 × MRL, and oxytetracycline at the levels 100 ppb (MRL), 500 ppb and 700 ppb. The samples were stored at 4 ± 2 C and -18 ± 2 C and were tested every day and week, respectively. The analyses were performed using microbiological diffusion test Delvotest SP-NT and receptor assay CHARM ROSA MRL BL/TET for the detection of β-lactams and tetracyclines. In cooled samples antibiotics were detected up to 72 h. After this time, the samples were acidulated and not suitable for investigations. In frozen samples, depending on type and concentration of antibiotics, these substances were detected from one week (penicillin G - 4 ppb) to 35 weeks (ampicillin and ceftiofur).</p>
</abstract>

Raw, inhibitors free milk was spiked with penicillin G, ampicillin, cloxacillin, and ceftiofur at the levels 1 × MRL, 1.5 × MRL, and 2 × MRL, and oxytetracycline at the levels 100 ppb (MRL), 500 ppb and 700 ppb. The samples were stored at 4 ± 2 C and -18 ± 2 C and were tested every day and week, respectively. The analyses were performed using microbiological diffusion test Delvotest SP-NT and receptor assay CHARM ROSA MRL BL/TET for the detection of β-lactams and tetracyclines. In cooled samples antibiotics were detected up to 72 h. After this time, the samples were acidulated and not suitable for investigations. In frozen samples, depending on type and concentration of antibiotics, these substances were detected from one week (penicillin G - 4 ppb) to 35 weeks (ampicillin and ceftiofur).

Stability of antibiotics in milk samples during storage

Department of Hygiene of Food of Animal Origin

Journal of Veterinary Research

{"article-title":"Stability of antibiotics in milk samples during storage"}

Raw, inhibitors free milk was spiked with penicillin G, ampicillin, cloxacillin, and ceftiofur at the levels 1 × MRL, 1.5 × MRL, and 2 × MRL, and...

Stability of antibiotics in milk samples during storage

Published Online: Sep 27, 2013

Page range: 347 - 349

DOI: https://doi.org/10.2478/bvip-2013-0060

Keywords
milk, antibiotic residues, storage, stability

This content is open access.

Stability of antibiotics in milk samples during storage

Published Online: Sep 27, 2013

Page range: 347 - 349

DOI: https://doi.org/10.2478/bvip-2013-0060

Keywordsmilk, antibiotic residues, storage, stability

This content is open access.

Keywords
milk, antibiotic residues, storage, stability