Author(s): Chen HC, Chai TJ
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Abstract The microbial load in ice-melt drainage collected from fishholds of fishing vessels stowing lizard fish, black croakers, cuttle fish, or nemipterids was very high, ranging from 2.1 x 10 to 2.2 x 10/ml for bacteria and 6.3 x 10 to 7.2 x 10/ml for yeasts and molds. Analysis of 100 colonies each randomly isolated from drainage samples of cuttle fish and lizard fish showed that the occurrence of bacterial genera as a percentage of the total was Moraxella-Acinetobacter, 61 to 62\%; Pseudomonas, 19 to 21\%; Alcaligens, 5 to 10\%; Flavobacterium, 1 to 4\%; Micrococcus, 1 to 4\%; Bacillus, Vibrio 0 to 2\%; Corynebacterium, 1 to 2\%; and others, 1 to 2\%. The organisms demonstrated versatile hydrolytic activities to a wide range of biological substrates including casein, gelatin, starch, DNA, and RNA. The possible connection between these bacteria and the deterioration of fish quality are discussed.
This article was published in Appl Environ Microbiol
and referenced in Journal of Microbial & Biochemical Technology