RESUMEN
One hundred and seventy seafood specimens were investigated for the presence of Vibrio parahaemolyticus. V. parahaemolyticus was isolated from two fish and one crab specimens, and V. alginolyticus was isolated from seven fish, three shrimp, two sea-urchin and one crab specimens. The V. parhaemolyticus isolates had biochemical characteristics that were similar to two standard strains. Like the standard strains, two of the V. parahaemolyticus isolates were Kangawa phenomenon positive and were serologically similar to one of the standard strains. One isolate exhibited slight cross reactivity with V. alginolyticus but no cross reactivity with E. coli. One of the V. alginolyticus isolates was Kanagawa-phenomenon positive.
Asunto(s)
Peces/microbiología , Microbiología de Alimentos , Mariscos , Vibrio parahaemolyticus/aislamiento & purificación , Animales , Braquiuros/microbiología , Decápodos/microbiología , Líbano , Erizos de Mar/microbiología , Vibrio/clasificación , Vibrio/aislamiento & purificaciónRESUMEN
Salmonella agona was isolated from an imported fish meal specimen and a Salmonella strain not listed in the Kauffmann-White Scheme was isolated from a shrimp specimen obtained from the Mediterranean coast of Lebanon. The biochemical and serological properties of the S. agona fish meal strain was identical to a standard strain. The serotype of the shrimp strain was O13,22 Vi. With the exception of hydrogen sulfide production the biochemical properties of the shrimp strain were similar to S. agona.
Asunto(s)
Decápodos/microbiología , Harina de Pescado , Productos Pesqueros , Microbiología de Alimentos , Salmonella/aislamiento & purificación , Pruebas de Aglutinación , Animales , Pollos/microbiología , Líbano , Salmonella/clasificación , Salmonella paratyphi A/clasificaciónRESUMEN
Washed and unwashed vegetables and fruit specimens including radish, lettuce, mint, carrots, parsley, strawberries, green almond, akadinya, green-gages, cherries, plums, peaches, pears, and apples were investigated for their bacterial content. Tested specimens had a high content of bacteria belonging to the genera Enterobacter, Citrobacter, Klebsiella, Proteus, Pseudomonas, Providencia, Escherichia, Staphylococcus, and Salmonella. The washing procedure followed was effective in reducing the number of bacteria, but did not eliminate them. Enterobacter agglomerans was present in most specimens tested, and 11 out of 28 E. coli isolates were serotypable and may be enterotoxigenic or enteropathogenic. These findings are of concern in view of the fact that food-borne illnesses including "Traveler's diarrhea" are common in Lebanon.