Penicillin and tetracycline residues in selected fresh and UHT milk with different fat contents

Buczkowska M., . and Górski M., . and Garbicz J., . and Grajek M., . and Buczkowski K., . and Garbowska D., . and Klein D., . and Duda S., . Penicillin and tetracycline residues in selected fresh and UHT milk with different fat contents. pp. 780-787. ISSN 22317546

The aim of the present work was to determine the residues of penicillin and tetracycline in selected fresh and UHT milk with different fat contents ( 2 2 and 2). A total of 84 different milk samples (36 fresh and 48 UHT) purchased from retail chains in Silesia Region (Poland) were analysed. Penicillin and tetracycline residues were determined by the ELISA immunoenzymatic method. The obtained results were compared with MRL values adopted in Commission Regulation (EU) No. 37/2010. The results were additionally analysed statistically. Penicillin and tetracycline were found to be common in the analysed milk samples. Both antibiotics were present in low concentrations and not exceeding their MRL. The median of penicillin residues was 0.298 g/L and 0.970 g/L for tetracycline. For some samples the determined levels of antibiotic residues did not exceed the limit of detection (LOD): three samples for penicillin (1.15) and 24 samples for tetracycline (28.57). A weak negative correlation between the level of penicillin and tetracycline residues was found (p -0.218) where the decrease in penicillin concentration weakly correlated to the increase in tetracycline concentration. The level of residues of both antibiotics was significantly higher in fresh milk than in UHT milk (by 11.75 for penicillin and 17.73 for tetracycline); for penicillin Zcorrected 2.445 and p 0.0145 and for tetracycline Zcorrected 3.914 and p 0.000091.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/28%20(04)%202021/DONE%2...

Abstract

The aim of the present work was to determine the residues of penicillin and tetracycline in selected fresh and UHT milk with different fat contents ( 2 2 and 2). A total of 84 different milk samples (36 fresh and 48 UHT) purchased from retail chains in Silesia Region (Poland) were analysed. Penicillin and tetracycline residues were determined by the ELISA immunoenzymatic method. The obtained results were compared with MRL values adopted in Commission Regulation (EU) No. 37/2010. The results were additionally analysed statistically. Penicillin and tetracycline were found to be common in the analysed milk samples. Both antibiotics were present in low concentrations and not exceeding their MRL. The median of penicillin residues was 0.298 g/L and 0.970 g/L for tetracycline. For some samples the determined levels of antibiotic residues did not exceed the limit of detection (LOD): three samples for penicillin (1.15) and 24 samples for tetracycline (28.57). A weak negative correlation between the level of penicillin and tetracycline residues was found (p -0.218) where the decrease in penicillin concentration weakly correlated to the increase in tetracycline concentration. The level of residues of both antibiotics was significantly higher in fresh milk than in UHT milk (by 11.75 for penicillin and 17.73 for tetracycline); for penicillin Zcorrected 2.445 and p 0.0145 and for tetracycline Zcorrected 3.914 and p 0.000091.

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Item Type:	Article
AGROVOC Term:	UHT milk
AGROVOC Term:	Milk
AGROVOC Term:	Penicillins
AGROVOC Term:	Tetracyclines
AGROVOC Term:	Sampling
AGROVOC Term:	Statistical analysis
AGROVOC Term:	Experimental design
AGROVOC Term:	Analytical methods
AGROVOC Term:	Acceptable daily intake
AGROVOC Term:	Fat content
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/10000

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