Bacteriological evaluation of hilsa (Hilsa ilisha) products in Bangladesh
1991
Hoq, M.E. | Islam, M.N. | Chakraborty, S.C. (Bangladesh Agricultural Univ., Mymensingh (Bangladesh). Dept. of Fisheries Technology)
Quantitative and qualitative studies were made on the bacterial flora of market samples of iced and salted hilsa (Hilsa ilisha). Gills, intestinal content and skin surface of iced hilsa and whole salted hilsa were examined. In iced hilsa, highest bacterial count was found in intestinal content (11.6x10(5) cfu.g). Followed by gill tissue (9.9 x 10(5) cfu.g) and lowest count was found on skin surface (0.68 x 10(5) cfu/em(2)). Qualitative study indicated that Micrococcus to be the dominant flora in all parts of iced fish. Other bacteria included Staphylococcus, Pseudomonas, Bacillus and Achromobacter. Coliform count was also higher in intestine than in gills or skin surface of iced fish. Coliform group included mostly Klebsiella and Enterobacter with a few E. coli. On an average, 3.02 x 10(5g) of bacteria were found in salted hilsa with Micrococcus predominating. Other isolates form salted hilsa included Bacillus, Serratia, Pseudomonas, Corynebacterium and Flavobacterium. Only a few coliform bacteria were present in salted hilsa.
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