Abstract of research

PSYCHROTROPHIC BACTERIA IN FROZEN FISH WITH SPECIAL REFERENCE TO PSEUDOMONAS SPECIES

Hassan, M. A.1., Shaltout, F. A.1., Maarouf, A. A.2 El-Shafey, W. S.3

Abstract

A total of 90 random samples of Saurus, Mackerel and Horse Mackerel (30 of each) were collected from different fish markets in El- Kalubia governorate to be examined bacteriologically for determination of psychrotrophic and Pseudomonas count in such examined samples. The bacteriological examination revealed the mean values of total psychrotrophic count and pseudomonas count in the examined samples of Saurus were 4.08 x 105 ± 0.71 x 10ْْْْْْ 5and 1.26 x 104 ± 0.32 x 104 cfu/g respectively. 9.95 x 104 ± 2.13 x 104, and 5.13 x 103 ± 0.91 x 103 x 103/ gm respectively. in Mackerel ,3,66 x 104 ± 0.49 x 104, and 2,47 x 103 ± 0.55 x 103 /g, in Horse Mackerel.. The incidence of Pseudomonas species were 76.67% 66.67% and 63.33% of the examined samples of Saurus, Mackerel and Horse Mackerel, respectively. The differences between the examined samples of different frozen fish as result of total psychrotrophic count, and total pseudomonas count were highly significant (P< 0.01). Public Health significant of isolated psychrotrophic bacteria and possible sources of fish contamination with such organisms as well as some recommendations to improve the quality of fish were discussed.