Streptomycin and dihydrostreptomycin residues in bovine milk from the Brazilian retail market.
Pasteurised bovine milk from retail markets in the State of São Paulo, Brazil, was analysed for the presence of streptomycin (STP) and dihydrostreptomycin (DHSTP) residues. An ELISA kit was used for screening and a LC-APCI-MS/MS QToF method for confirmatory analysis. Both methods were intra-laboratory validated and found suitable for screening and confirmatory testing, respectively, for STP and DHSTP residues in pasteurised bovine milk at concentration levels below the maximum residue limit (MRL) established for these substances (200 µg kg(-1) expressed as the sum of the concentrations of STP and DHSTP). No residues of STP and DHSTP at detectable levels were found in the analysed samples (n = 299).
a Department of Food Science, School of Food Engineering , University of Campinas , P.O. Box 6121 , 13083-970 Campinas , SP , Brazil.
Renata C
RC
de Oliveira
Jonas A R
JA
Paschoal
Felix G R
FG
Reyes
D000818:Animals; D001938:Brazil; D002417:Cattle; D003132:Commerce; D004096:Dihydrostreptomycin Sulfate / Q000737:chemistry*; D004350:Drug Residues / Q000032:analysis*; D004797:Enzyme-Linked Immunosorbent Assay; D005506:Food Contamination / Q000032:analysis; D008892:Milk / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013307:Streptomycin / Q000737:chemistry*
D004096:Dihydrostreptomycin Sulfate; D013307:Streptomycin
milk; veterinary drug residues, antibiotics, antimicrobials