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shahbaz

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shahbaz
i did a microbiology test on two samples of tuna..one was fresh the other a couple of weeks old. The fresh sample tested positive for C.perfringens, Listeria and negative for Salmonella whilst the...
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shahbaz
i was testing a food sample for the presence of the food poisoning bacteria listeria and salmonella. however i was only going to incubate the samples for 48hours but the samples were left in for...