Assessment of antibiotic residues in raw and pasteurized milk produced using the different analytical methods

Mohammadi, Ali Akbar; Naimabadi, Abolfazl; Oskoei, Vahide; Morgan Azghadi, Naser; Taghavi Manesh, Vahid; Mohammadi-Moghaddam, Toktam

doi:10.22102/jaehr.2022.345382.1295

Assessment of antibiotic residues in raw and pasteurized milk produced using the different analytical methods

Document Type : Original Article

Authors

¹ Department of Environmental Health Engineering, Neyshabur University of Medical Sciences, Neyshabur, Iran.

² Department of Environmental Health Engineering,School of Public Health , Tehran University of Medical Sciences, Tehran, Iran.

³ Responsible for coordinating research and development, Veterinary Organization, Khorasan-Razavi, Mashhad, Iran.

⁴ Student Research Committee, Neyshabur University of Medical Sciences, Neyshabur, Iran.

⁵ Department of Food Science and Technology, Neyshabur University of Medical Sciences, Neyshabur, Iran.

10.22102/jaehr.2022.345382.1295

Abstract

Background: Inappropriate use of antibiotics in animal disease treatment causes many adverse health effects in consumers due to the lack of attention to the required time for emulating the absorbed doses of the drugs from different organs. In this study, the antibiotic residues in raw and pasteurized milk of Neyshabour city have been evaluated.

Methods: Raw and pasteurized milk samples were collected from eight farms and milk collection units and four pasteurized milk production factories in Neyshabour city during the warm and cold seasons. Raw milk (56 samples) and pasteurized milk(24 samples) were analyzed using the Copan milk test, Tri-Sensor kit and ELISA detection methods to evaluate the presence of the antibiotic residue.

Results: Copan milk test and Tri-Sensor kit could not detect the antibiotic residue. ELISA kit was able to detect the presence of Gentamicin and Streptomycin in milk. 25% of the samples contained Gentamicin, while 10% of the samples contained Streptomycin. The amount of antibiotic residue in the warm season was higher than in the cold season. 58.3% of pasteurized milk samples in the warm season had Gentamicin.

Conclusion:Based on this study's obtained results, Extensive and accurate monitoring of antibiotics in raw and pasteurized milk needs to be done, especially in the warm season.

Keywords