日本産沿岸ミ-ルのサルモネラ汚染

概要

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A survey was conducted on the contamination of fish meals with Salmonella in Japan. Samples belonging to the so-called coastal fish meals were collected mostly at three fish meal factories located in Choshi, Chiba Prefecture. Samplings were conducted on once a month bases from October, 1981 to December, 1982. The results obtained can be summarized as follows: 1) Twenty six samples out of 112 were positive qualitatively, and MPN of Salmonella in 17 samples except 9 samples ranged from 2 to 170 cells/100g, 2) Total viable counts in these Salmonella posi-tive samples ranged from 1.3×103 to 1.4×108 cells/g, those of coli forms, from 0 to 6.7×105 cells/g, and those of fungi, from 0 to 2.7×105 cells/g, respectively. 3) Out of the 416 Salmonella isolates, 354 isolates were identified as 10 serovars, including S. cerro (21%), S. senftenberg (H2S negative) (15%) S. anatum (15%) and S. havana (12%) etc., however, 62 isolates were not identified. 4) It was found that the contamination of Salmonella in fish meals; mainly, occurred after the preparation, especially during and after cooling step of the production. The results mentioned above strongly indicate the necessity for promoting appropriate sanitary control in the production of coastal fish meals in Japan.
日本水産學會の論文