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Magnusson Micro-org.

Biology AS level work.

QuestionAnswer
How does Drying prevent Bacterial Growth? The food is dehydrated and there is not enough water for the bacteria to survive.
How does freezing prevent food spoilage? the low temperature causes the enzymes to not act efficiently, meaning that the food cannot rot and break down.
Why do bacteria die in Vacuum packing? there is not enough oxygen in the pack for bacterial survival.
What materials can be used in food drying? Salt, Sugars, and Nitrates.
What happens during Pickling? the liquid withing which the food is kept, is anti-microbial, and kills or inhibits the bacteria.
Created by: GeorgeMonkeyBoy
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