Titre :
|
Toxin production by Clostridium botulinum type E in packaged channel catfish
|
Auteurs :
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P. Cai ;
M. Harrison ;
Y. Huang ;
J. Silva
|
Type de document :
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article/chapitre/communication
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Année de publication :
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1997
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Format :
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p. 1358-1363
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Langues:
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= Anglais
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Catégories :
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QUALITE DES PRODUITS ALIMENTAIRES
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Mots-clés:
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POISSON
;
CONSERVATION DES ALIMENTS
;
ATMOSPHERE CONTROLEE
;
ATMOSPHERE MODIFIEE
;
TEMPERATURE
;
BACTERIE PATHOGENE
|
Résumé :
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Channel catfish were inoculated with 3 to 4 log spores/g of a mixed pool of four strains of C. Botulinum type E (Beluga, Minnesota, G(21)-5, and 070) and were packaged with an oxygen-permeable overwrap, in an oxygen-barrier bag with a modified atmosphere of CO2-N-2 (80:20) or in a master bag with the same modified atmosphere. Packaged fish were stored at either 4 °C and sampled at intervals over 30 days or at 10 °C and sampled at intervals over 12 days. An additional master bag treatment in which overwrap-packaged catfish was stored first at 4 °C, then removed from the master bags and stored at 10 °C, was sampled at intervals over 18 days. Toxin production was evaluated using the mouse bioassay. Aerobic psychrotrophic and anaerobic populations were enumerated, and product spoilage characteristics were noted.
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Source :
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Journal of Food Protection, vol.60, n°11
|