Bacteriological studies on psychrotrophic bacteria and Pseudomonas isolated from frozen fish.

Abstract

Frozen fish are exposed to many risks of contamination during long chain of catching, transportation, dressing and freezing from different sources. Till they reach to consumers which make it harmful or unfit for human consumption. A total of 100 random samples of frozen Saurus and Mackerel (50 of each) were collected from different fish markets at El -Menofia governorate. They were subjected to bacteriological examination for isolation of Psychotropic and Pseudomonas species. The bacteriological examination revealed that the mean values of total Psychotropic count in the examined samples of Saurus were1.07×10 7 ±2.82×10 6 and 1.14×10 7 ±3.2×10 6 in Mackerel. The incidence of Pseudomonas species was 40%and50% of the examined samples of Saurus and Mackerel, respectively. The incidence of identified Pseudomonas species isolated from the examined samples of frozen fish were Ps. aeruginosa, Ps. dimenuta, Ps. fluorescence, Ps. putida and Ps. fragi. The Pseudomonas species were resistant to chloramphenicol and nalidixic acid. In contrast they were sensitive to gentamycin except Ps.

Characterization of β-lactamase and virulence genes in Pseudomonas aeruginosa isolated from clinical, environmental and poultry sources in Bangladesh

“…aeruginosa in broiler chickens in Egypt [ 41 ] whereas El-Tawab et al found that 34% of the tested frozen fish possessed P . aeruginosa [ 42 ]. Detection of P .…”

“…The isolation rate of various water samples may fluctuate depending on the source and size of the sample, as well as the time and length of sample collection [3,37,40]. Previously, Algammal et al reported 28.3% prevalence of P. aeruginosa in broiler chickens in Egypt [41] whereas El-Tawab et al found that 34% of the tested frozen fish possessed P. aeruginosa [42]. Detection of P. aeruginosa in poultry and associated environment is alarming because of the possibilities of transmission of these pathogens to human.…”

Characterization of β-lactamase and virulence genes inPseudomonas aeruginosaisolated from clinical, environmental and poultry sources in Bangladesh

“…The isolation rate of various water samples may fluctuate depending on the source and size of the sample, as well as the time and length of sample collection [3, 35, 39]. Previously, Algammal et al reported 28.3% prevalence of P. aeruginosa in broiler chickens in Egypt [40] whereas El-Tawab et al found that 34% of the tested frozen fish possessed P. aeruginosa [41]. Detection of P. aeruginosa in poultry and associated environment is alarming because of the possibilities of transmission of these pathogens to human.…”