The Growth and Toxin Production of Clostridium botulinum Type E in Certain Vacuum Packed Fish |
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Authors: | D C Cann Barbara B Wilson G Hobbs J M Shewan |
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Institution: | Ministry of Technology, Torry Research Station, Aberdeen, Scotland |
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Abstract: | The growth and toxin production of Clostridium botulinum type E in various types of vacuum packed fish products was tested, with particular reference to the time/temperature relationship of storage. Toxin production was most rapid in herring although smoking retarded its development. With as small an inoculum as 102 spores/pack, fresh herring became toxic after storage for 15 days at 5°. Irradiation of three species of fish after inoculation with Cl. botulinum type E showed that spores surviving radiation germinated and produced toxin more rapidly than an equivalent concentration of spores in nonirradiated fish. |
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