Antimicrobial residues survey by LC-MS in food-producing animals in Lebanon

ABSTRACT

The treatment of animals with antimicrobial products may lead to the contamination of edible tissues by their residues, which may represent a risk to human health. Therefore, this study aimed to determine the level of antimicrobial residues in food-producing animals (chicken, beef, and milk) in Lebanon. A total of 310 samples were collected and analysed using an LC-MS/MS for the determination of 48 compounds belonging to different families in order to map their compliance according to the European Commission decision 2002/657/EC. Results show that 60% of the analysed samples were not contaminated by any residue, while 12% presented a concentration higher than the MRLs for tetracyclines, sulphonamides, quinolones, and macrolides. Results revealed that chicken were the most contaminated by antimicrobial residues, when compared to beef and milk. The obtained results demonstrate the uncontrolled use of antimicrobials in some Lebanese farms and claim for better management of livestock.

KEYWORDS:

• Antimicrobials
• milk
• edible animals
• LC/MS/MS screening

Acknowledgments

The authors thank the Lebanese National Council for Scientific Research (CNRSL) and the Lebanese Atomic Energy Commission (LAEC) for its continuous scientific support throughout the project.

Disclosure statement

All authors have approved the submission and none declare any conflict of interest in the work performed or in the submission of the manuscript.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.