African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5145

Full Length Research Paper

Drug-resistant bacteria in frozen and fresh marine shrimp

Antonia Jorgiane Rodigues de Macedo
  • Antonia Jorgiane Rodigues de Macedo
  • Pharmacy Faculty, Faculty INTA, Sobral, CE, Brazil.
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Maria Alana Duarte Marinho
  • Maria Alana Duarte Marinho
  • Pharmacy Faculty, Faculty INTA, Sobral, CE, Brazil.
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Sara Edwirgens Costa Benício Vasconcelos
  • Sara Edwirgens Costa Benício Vasconcelos
  • Biotechnology - Faculty INTA, Sobral, CE, Brazil.
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Renata Albuquerque Costa
  • Renata Albuquerque Costa
  • Biotechnology - Faculty INTA, Sobral, CE, Brazil.
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  •  Received: 22 February 2016
  •  Accepted: 07 June 2016
  •  Published: 07 September 2016

Abstract

This study aimed to evaluate the bacteriological quality of frozen and fresh shrimp samples by Salmonella detection and the quantification of staphylococci and coliforms. Antimicrobial susceptibility profile of staphylococci isolates was also determined. A total of 30 shrimp samples commercialized in Sobral-CE - 15 fresh and 15 frozen, each one weighing 500 g - was analyzed. There was no contamination by Salmonella and/or coliform, but the Staphylococcus quantification showed that 12 samples (80.0%) of the frozen and 10 (66.7%) of the fresh shrimp presented a bacterial load above 3.0 log10 CFU g-1 - a limit recommended by the current legislation in Brazil. 17 drug-resistant staphylococci strains were isolated, and the following antimicrobial resistance profiles were detected: monoresistance (n=4), cross-resistance to beta-lactam (n=4), and multidrug resistance to: Oxacillin+ampicillin+tetracycline (n=1), oxacillin+tetracycline+ penicillin+chloramphenicol+vancomycin (n=1). The findings indicate that frozen and fresh shrimps may act as vehicles for the spread of staphylococci resistant to drugs of clinical interest.

 

Key words: Enterobacteria, Staphylococcus drug-resistant, shrimp.