Problem Set 2- Food Microbiology

Problem Set 2- Food Microbiology - would have made them...

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FDSC 2000 / NS 3450 Problem Set 2: Food Microbiology Using the assigned article and information presented in lecture, answer the following questions in a concise fashion. This assignment is due in class on or before Monday Oct 5. 1. What food product was responsible for the outbreak? ________________________________ 2. According to the authors, what two characteristics of Listeria promote its transmission from foods to humans? 3. What methodological approach was taken to identify the offending food? 4. Listeria is readily killed by cooking, yet this outbreak involved consumption of a food that had been cooked. What is the most likely explanation for this outbreak? 5. Because Listeria is readily killed by cooking, heating these meats prior to consumption
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Unformatted text preview: would have made them safe. Give an example of a bacterium discussed in lecture for which this would not be the case. _________________________ 6. Identify two specific changes in regulatory policy that were instituted as a result of this outbreak and its investigation. 7. You have a small dairy farm and you are worried that some of your milk may be contaminated with bacteria. In order to determine the microbial population, you perform three 1:100 dilutions using a 1ml aliquot of the milk. You then plate the last dilution on a selective growth plate. The next day, you count four colonies. How many bacteria would you drink (minimum) if you drank one cup (250ml) of the milk? _________________________ bacteria...
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