Incidence of Fecal Streptococci and Coliform Bacteria in Frozen Fish Products

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Abstract
A comparison was made between the MPN of coliform bacteria and fecal streptococci in frozen fish and fish products. The use of fecal streptococci as test organisms is advocated for bacteriological examination of frozen fish products. Procedures for isolation of fecal streptococci are simpler and the results more significant than those of the coliform bacteria. Shaking by hand may be employed in examination of frozen fish products when initial control examinations are made. Where greater accuracy is necessary use of the blendor is advocated. Plate count procedures are not applicable to the examination of frozen fish products. It is probable that breeding procedures are responsible for the high incidence of fecal streptococci on some fish products.

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