Abstract
SummaryA model pork slurry system was used to study factors controlling the growth of Clostridium botulinum types A & B (Roberts, Gibson & Robinson, 1981a,b). The following factors were studied in combination: sodium chloride (2.5, 3.5, 4.5% w/v on water); sodium nitrite (100, 200, 300 μg/g); sodium nitrate (0, 500 μg/g); sodium isoascorbate (0, 1000 μg/g); polyphosphate (Curaphos 700, 0, 0.3% w/v); heat treatment (none, 8°C/7 min, 80°C/7 min + 70°C/1 hr); at two pH levels and stored at: 15, 17.5, 20 or 35°C.Analyses of results yielded a statistical model providing two formulae (for ‘low’ and ‘high’ pH slurries) which estimate the probability of toxin production in the pork slurry system within the limits defined above.
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More From: International Journal of Food Science & Technology
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