MICROBIOLOGICAL QUALITY OF SOME ICED. FISHES OF IMPHAL MARKET, MANIPUR
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Authors
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H. LILABATI
Fishery Research Laboratory, Department of Life Sciertces,
Manipur University, Canchipur - 795 003, Manipur.
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W. VISHWANATH
Fishery Research Laboratory, Department of Life Sciertces,
Manipur University, Canchipur - 795 003, Manipur.
Abstract
Imphal is the main marketing centre. of fish in Manipur. As fish
production of the state. is not sufficient to meet the demands, about
120 metric tons of iced fishes are annually brought from other states
and sold in this market. Microbiological quality of iced Wallago attu,
~abeo rohita; L. gonius and Aorichthys aor in respect of total fungal
count (TFC), total plate ·count of bacteria (TPC), Most Probable Number
(MPN) of coliforms, Streptococci, Staphylococcus, Salmonella and
Escherichia coli in four tissues viz~ skin, muscle, gill and intestine
were analysed. In all cases, the counts were highest in the gills and
lowest in the muscles. 'rhe values of TFC, TPC, coliforms, Streptococci
and Staphylococci were Oa103/g 106-108/g, 2-a/g, 10-105/g, 10-105/g
respectively. E. coli and Salmonella were not detected in any of the
samples while. the ice used in the preservation contained 105
• 107 of
TPC per gram. The microbiological quality of the iced fishes of Imphal
market were .adjudged poor. The extremely high counts of bacteria
might be due to (1) poor. quality ~nd left over fishes being packed, (2)
cont~ct with contaminated ice .and (3) repeated thawing and freezing
during. the process of marketing and transportation.
