Producción Científica Profesorado

Prevalence and Antimicrobial Resistance Patterns of Salmonella from Different Raw Foods in Mexico



Rodríguez Ávila, José Antonio

2009

Miranda, J.M., Mondragon, A.C., Hernandez, B., Guarddon, M., Rodriguez, J.A. Prevalence and antimicrobial resistance patterns of Salmonella from different raw foods in Mexico, Journal of Food Protection, 2009, Vol. 72, p. 966-971, ISSN 0362-028X


Abstract


The presence of Salmonella was determined in 116 samples of poultry meat, 81 samples of pork, 73 samples of beef, 33 samples of cheese, 61 samples of fish, and 78 samples of vegetables collected from retail stores and supermarkets in Hidalgo State (Mexico). Ninety-three Salmonella strains isolated from raw foods were characterized, and MICs were determined for 10 antimicrobials. Salmonella was detected in 35.3% of poultry meat, 30.3% of cheese, 21.8% of vegetable, 17.3% of pork, and 15.1% of beef samples, but no Salmonella was detected in fish samples. Significantly higher counts were obtained in chicken meat (P = 0.0001), pork (P = 0.0116), cheese (P = 0.0228), and vegetables (P = 0.0072) obtained from retail stores compared with those samples obtained from supermarkets. Salmonella isolates had high levels of resistance to ampicillin (66.7% of isolates), tetracycline (61.3%), and chloramphenicol (64.5%) and low levels of resistance to cefotaxime (0%), gentamicin (3.2%), and kanamycin (4.3%). Higher levels of quinolone resistance were found in isolates from poultry meat and vegetables compared with that in other foods tested. High levels of multiresistant strains were found in all foods tested except fish, ranging from 100% of pork samples to 47.1% of vegetable samples. The present study revealed that Salmonella prevalence was higher in foods from retail stores than in foods from supermarkets. Resistance rates observed for Salmonella were largely comparable to those reported in other countries for most antimicrobials, although resistance to chloramphenicol tended to be higher.



Producto de Investigación




Artículos relacionados

cis-Palladium(II) complexes of derivatives of di-(2-pyridyl)methane: Study of the influence of the b...

Kinetics of Polypyrrole Films Doped with Sulphate Ions Electrodeposited Over Graphite - Epoxy Resin ...

Design and Construction of Solid State Ag/AgCl Reference Electrodes Through Electrochemical Depositi...

Magnetic solids in analytical chemistry: A review

High-performance liquid magneto-chromatography

Determination of oxytetracycline in milk samples by polymer inclusion membrane separation coupled to...

Renewable stationary phase liquid magnetochromatography: determining aspartame and its hydrolysis pr...

Presence and antimicrobial resistance of Escherichia coli isolated from foodstuffs in Hidalgo State ...

Chemical studies of anthocyanins: A review

Validation of a tubular bismuth film amperometric detector: Determination of diclofenac sodium by mu...