Discussion
Which genera predominate among the specific spoilage organisms of fish?
Answer: B
Correct answer: Pseudomonas, Shewanella and Aeromonas
These are Gram-negative, psychrotrophic and aerobic, which is precisely the combination suited to chilled fish stored in air. They grow well at ice temperature and produce the volatile compounds responsible for the characteristic off odours, so they set the shelf life of iced fish.
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