| Popis: |
Bottled lumpfish caviar was prepared with different salt (NaCl) concentrations and pH, and injected with spores of Clostridium botulinum . Under abusive storage conditions (30 C), outgrowth and toxigenesis occurred at combinations of ≤ 3.95% salt in the water phase and pH ≥ 5.2, and of ≤ 4.67% salt and pH ≥ 5.6. No toxin was formed at salt concentrations of ≥ 5.56% or at pH ≤ 5.0. A survey of commercial caviar products showed that most of these had salt-pH combinations which would effectively inhibit C. botulinum at abusive temperatures during storage. |
