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RISK OF GROWTH AND TOXIN PRODUCTION BY CLOSTRIDIUM BOTULINUM NONPROTEOLYTIC TYPES B, E AND F IN SALMON FILLETS STORED UNDER MODIFIED ATMOSPHERES AT LOW AND ABUSED TEMPERATURES.

Author(s) : GARCIA G. W., GENIGEORGIS C., LINDROTH S.

Type of article: Article

Summary

IN FACTORIAL DESIGN EXPERIMENTS THE AUTHORS INOCULATED FRESH FILLETS WITH A SPORE POOL OF 13 NONPROTEOLYTIC STRAINS OF CLOSTRIDIUM BOTULINUM TYPE B, E AND F AT 6 LEVELS (0.1 TO 10,000/50 G OF FILLET), AND INCUBATED AT 274, 277, 281, 285 AND 303 K (1, 4, 8, 12 AND 30 DEG C) UNDER MODIFIED ATMOSPHERES (MA) OF VACUUM, 100% CO2 AND 70% CO2 + 30% AIR FOR UP TO 60 D. THE EARLIEST TIME THEY DETECTED TOXIN AT 303, 285 AND 281 K, IRRESPECTIVE OF MA, WAS AFTER 1, 3-9 AND 6-12 D OF STORAGE. THE PROBABILITY OF TOXIN PRODUCTION WAS SIGNIFICANTLY AFFECTED BY TEMPERATURE. ONLY TYPE B TOXIN WAS DETECTED IN THE TOXIC FILLETS. NO TOXIN WAS DETECTED IN FILLETS AT 277 K FOR UP TO 60 D. TOXIN DETECTION COINCIDED WITH SPOILAGE AT 303 K BUT PRECEDED SPOILAGE AT 281 AND 285 K, AND FOLLOWED SPOILAGE AT 277 K.

Details

  • Original title: RISK OF GROWTH AND TOXIN PRODUCTION BY CLOSTRIDIUM BOTULINUM NONPROTEOLYTIC TYPES B, E AND F IN SALMON FILLETS STORED UNDER MODIFIED ATMOSPHERES AT LOW AND ABUSED TEMPERATURES.
  • Record ID : 1987-2272
  • Languages: English
  • Source: Journal of Food Protection - vol. 50 - n. 4
  • Publication date: 1987
  • Document available for consultation in the library of the IIR headquarters only.

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