Presence of Listeria monocyto-genes in fresh salad vegetables
نویسنده
چکیده
RESUMEN. Presencia de Listeria monocytogenes en vegetales frescos. Introducción. En los últimos años, se ha dado un incremento en el hecho de consumir vegetales frescos como parte de una dieta sana, pero no se puede descartar el que estos pueden actuar como vehículos de microorganismos patógenos, como Listeria monocytogenes. Material y métodos. Se evaluó la presencia de Listeria monocytogenes en 50 muestras de ensalada, según la metodología descrita por Vanderzant y Splittstoesser. Resultados. Se aisló Listeria spp. a partir de 32% (16/50) de las muestras analizadas, de éstas, 8% (10/16) correspondió a L. monocytogenes, 8% (4/16) a L. welshimeri y 4% (2/16) a L. murrai. Rafael Monge, María L. Arias-Echandi.
منابع مشابه
Incidence and survival of Escherichia coli O157:H7 and Listeria monocytogenes on salad vegetables
Salad vegetables contaminated with pathogens can cause food poisoning. The isolation of Escherichia coli O157:H7 and Listeria monocytogenes from different salad vegetables; cucumber, cabbage, carrot, and lettuce was carried out. E. coli O157:H7 was isolated from all the salad vegetables while L. monocytogenes was isolated from only cabbage and lettuce. The effect of different storage temperatur...
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