Journal
FOOD CONTROL
Volume 34, Issue 2, Pages 408-413Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2013.05.001
Keywords
Apramycin; Antibody; Immunoassay; Aminoglycosides; Kidney; Muscle
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Veterinary aminoglycoside antibiotic apramycin (AP) was used as hapten in different conjugation procedures for preparation of immunogen and coating antigens. Among the coating antigens one was chosen to ensure strictly selective determination of AP with no cross-reactivity of related analogs. The limit of competitive ELISA detection was 0.015 ng/ml for swine kidney and bovine muscle extracts. The dynamic range IC20-IC80 was calculated as 0.03-1.8 ng/ml (0.15-9 mu g/kg). High sensitivity of assay allowed eliminating matrix effect of samples by simple dilution of tissue extracts. The experiments with tissue samples fortified with AP at half, single and double MRL values showed the recovery rate of 85-105%. Along with the other immunotests and kits for determination of aminoglycosides this for the first time developed assay of apramycin is suitable for screening of antibiotic residues in foodstuff. (C) 2013 Elsevier Ltd. All rights reserved.
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