Microbiology
The favouring conditions for floaters is

thick skin that does not allow gas to diffuse out
none of these
high intial amounts of salt
both (a) and (b)

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Microbiology
Which of the following is true to prevent botulism from smoked fish?

All of these
Fish should be immediately frozen after packaging and kept frozen
Good sanitation should be maintained throughout production and handling
The fish should be heated at its coolest part to at least 82°C for 30 min during or after smoking

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