Antibiotics and Non-Targeted Metabolite Residues Detection as a Comprehensive Approach toward Food Safety in Raw Milk

Antibiotic residues in milk are a serious health and technological problem in dairy processes. This study aims to verify the absence of administered antimicrobials after therapeutic treatments, taking into consideration the withdrawal period, and to evaluate the reliability of screening tests under...

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Main Authors: Luca Maria Chiesa, Federica Di Cesare, Maria Nobile, Roberto Villa, Lucia Decastelli, Francesca Martucci, Mauro Fontana, Radmila Pavlovic, Francesco Arioli, Sara Panseri
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/10/3/544
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author Luca Maria Chiesa
Federica Di Cesare
Maria Nobile
Roberto Villa
Lucia Decastelli
Francesca Martucci
Mauro Fontana
Radmila Pavlovic
Francesco Arioli
Sara Panseri
author_facet Luca Maria Chiesa
Federica Di Cesare
Maria Nobile
Roberto Villa
Lucia Decastelli
Francesca Martucci
Mauro Fontana
Radmila Pavlovic
Francesco Arioli
Sara Panseri
author_sort Luca Maria Chiesa
collection DOAJ
description Antibiotic residues in milk are a serious health and technological problem in dairy processes. This study aims to verify the absence of administered antimicrobials after therapeutic treatments, taking into consideration the withdrawal period, and to evaluate the reliability of screening tests under field conditions after confirmatory HPLC-HRMS (High Performance Liquid Chromatography-High-Resolution Mass Spectrometry) Orbitrap analysis. Moreover, the presence of expected or non-targeted metabolites was investigated using the new Compound Discoverer approach. The presence of antimicrobial drugs was shown in 29% of the samples, and also sometimes their metabolites (for enrofloxacin and lincomycin), despite the fact that samples were collected at the seventh milking. Moreover, in 9% of the samples, undeclared treatments were revealed due to the presence of both parent drugs and metabolites. Lastly, the putative identification of two new enrofloxacin metabolites, ENRO-N-methylacetamide and ENRO-ornithine, was proposed. In the light of this evidence, it must be borne in mind that metabolites, some of which are pharmacologically active, may also pose a risk to consumers and for the entire processing of milk in the cheese industries.
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spelling doaj.art-20a764fadd2049a8bfc4b6de4e4e0d232023-12-03T12:47:06ZengMDPI AGFoods2304-81582021-03-0110354410.3390/foods10030544Antibiotics and Non-Targeted Metabolite Residues Detection as a Comprehensive Approach toward Food Safety in Raw MilkLuca Maria Chiesa0Federica Di Cesare1Maria Nobile2Roberto Villa3Lucia Decastelli4Francesca Martucci5Mauro Fontana6Radmila Pavlovic7Francesco Arioli8Sara Panseri9Department of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, ItalyDepartment of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, ItalyDepartment of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, ItalyDepartment of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, ItalyIstituto Zooprofilattico Sperimentale Piemonte, Liguria e Valle d’Aosta, Via Bologna, 148, 10154 Turin, ItalyIstituto Zooprofilattico Sperimentale Piemonte, Liguria e Valle d’Aosta, Via Bologna, 148, 10154 Turin, ItalyDVM, Specialist in Inspection of Food of Animal Origin, 10147 Turin, ItalyDepartment of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, ItalyDepartment of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, ItalyDepartment of Health, Animal Science and Food Safety, University of Milan, Via Celoria 10, 20133 Milan, ItalyAntibiotic residues in milk are a serious health and technological problem in dairy processes. This study aims to verify the absence of administered antimicrobials after therapeutic treatments, taking into consideration the withdrawal period, and to evaluate the reliability of screening tests under field conditions after confirmatory HPLC-HRMS (High Performance Liquid Chromatography-High-Resolution Mass Spectrometry) Orbitrap analysis. Moreover, the presence of expected or non-targeted metabolites was investigated using the new Compound Discoverer approach. The presence of antimicrobial drugs was shown in 29% of the samples, and also sometimes their metabolites (for enrofloxacin and lincomycin), despite the fact that samples were collected at the seventh milking. Moreover, in 9% of the samples, undeclared treatments were revealed due to the presence of both parent drugs and metabolites. Lastly, the putative identification of two new enrofloxacin metabolites, ENRO-N-methylacetamide and ENRO-ornithine, was proposed. In the light of this evidence, it must be borne in mind that metabolites, some of which are pharmacologically active, may also pose a risk to consumers and for the entire processing of milk in the cheese industries.https://www.mdpi.com/2304-8158/10/3/544antibioticsmetabolitesnon-targeted analysisCompound Discoverermilkscreening test
spellingShingle Luca Maria Chiesa
Federica Di Cesare
Maria Nobile
Roberto Villa
Lucia Decastelli
Francesca Martucci
Mauro Fontana
Radmila Pavlovic
Francesco Arioli
Sara Panseri
Antibiotics and Non-Targeted Metabolite Residues Detection as a Comprehensive Approach toward Food Safety in Raw Milk
Foods
antibiotics
metabolites
non-targeted analysis
Compound Discoverer
milk
screening test
title Antibiotics and Non-Targeted Metabolite Residues Detection as a Comprehensive Approach toward Food Safety in Raw Milk
title_full Antibiotics and Non-Targeted Metabolite Residues Detection as a Comprehensive Approach toward Food Safety in Raw Milk
title_fullStr Antibiotics and Non-Targeted Metabolite Residues Detection as a Comprehensive Approach toward Food Safety in Raw Milk
title_full_unstemmed Antibiotics and Non-Targeted Metabolite Residues Detection as a Comprehensive Approach toward Food Safety in Raw Milk
title_short Antibiotics and Non-Targeted Metabolite Residues Detection as a Comprehensive Approach toward Food Safety in Raw Milk
title_sort antibiotics and non targeted metabolite residues detection as a comprehensive approach toward food safety in raw milk
topic antibiotics
metabolites
non-targeted analysis
Compound Discoverer
milk
screening test
url https://www.mdpi.com/2304-8158/10/3/544
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