Survey of antibiotic residues in raw milk samples in Qazvin (2012)

Razzagh Mahmoudi; R Norian; P Gajabeygi

Journal of Inflammatory Diseases

The Official Journal of Qazvin University of Medical Sciences

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Survey of antibiotic residues in raw milk samples in Qazvin (2012)

Author(s):

Razzagh Mahmoudi^,*,

R Norian¹,

P Gajabeygi²

1Laboratory of Food Quality Control and Hygiene

2Qazvin University of Medical scince

Journal of Inflammatory Diseases:Vol. 18, issue 1; 45-52

Article type:Research Article

How to Cite:Razzagh MahmoudiR NorianP GajabeygiSurvey of antibiotic residues in raw milk samples in Qazvin (2012).J Inflamm Dis.18(1):e155818.

Abstract

Background: Use of food products of animal origin containing antibiotics residues has led to much concern in consumers. Objective: The aim of this study was to determine the antibiotic residues in raw cow milk in Qazvin province. Methods: In this cross sectional study, 200 raw cow milk samples were randomly collected from industrial dairy farms in Qazvin province during the warm and the cold seasons in 2012. All samples were examined by Delvo test and specific ELISA kits for enrofloxacin , gentamicin , tetracycline , tylosin , chloramphenicol and sulfonamides residues . Data were analyzed using ANOVA and Tukey’s test. Finding: 86 milk samples (43%) were positive for antibiotic residues to Delvo test. The highest mean values were related to sulfonamides (20.40±12.99 ng/ml) and gentamicin (20.06±14.92 ng/ml) and the lowest mean value was related to chloramphenicol (0.13±0.07 ng/ml) by specific ELISA kits. The mean values of antibiotic residues were significantly higher during the warm season compared to the cold season. Chloramphenicol residues were above the Maximum Residue Limits (MRL) (0 μg/l) in all positive samples. Sulfonamides residues were above the MRL (25μg/l) in 25.39% of milk samples . Conclusion: With regards to the results, extensive and careful monitoring of the production and supply of food products of animal origin, especially milk and evaluation of drug residues are essential.

Keywords

Drug Residues

Milk

Enzyme-Linked Immunosorbent Assay (ELISA)

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