Journal
JOURNAL OF FOOD PROTECTION
Volume 73, Issue 9, Pages 1684-1687Publisher
ELSEVIER
DOI: 10.4315/0362-028X-73.9.1684
Keywords
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Funding
- Fundacao Araucaria [8912-06/2005]
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In this study we examined the hygienic and sanitary quality of pasteurized cow's milk in the state of Parana. Brazil. by determining the presence of conforms and occurrence of antimicrobial residues. A total of 260 milk samples were collected from commercial establishments in different regions of the state Coliform populations were estimated by the multiple-tube test, and antimicrobial residues were detected by enzyme-linked immunosorbent assay. Overall, 105 samples (40 4%) were unsuitable for consumption according to Brazilian legal standards Among the coliforms. Escherichia coli and Klebstella pneumomae were respectively identified in 77 05 and 36 07% of the samples. The highest rates of resistance to antimicrobial agents were observed for ampincillin (19.2%), cephalothin (18 9%), and tetracycline (17 1%) Antimicrobial residues were detected in 80 samples (30.8%) Forty-eight samples (18 5%) were positive for tetracycline, 29 (17 4%) for neomycin, 9 (3 5%) for beta-lactams. 6 (2 3%) for gentamicin. 4 (1 5%) for chloramphenicol, and 1 (0 4%) for streptomycin-dihydrostreptomycin The results demonstrate a high prevalence of conforms and also a high occurrence of antimicrobial residues in pasteurized cow's milk from Parana, Brazil
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