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Escience microbiology kit

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Reference no: EM132322063

In many states, the legal limit for all bacteria present in pasteurized milk is not to exceed 20,000 CFU/mL. You have been away on vacation and left an unopened plastic jug of milk in your refrigerator. The "Sell By" date was three days ago. Instead of throwing it out, you decide to test it using your eScience Microbiology Kit. Here are your results for a "countable" plate in your serial dilutions: 186 colonies on a plate where the dilution factor was 1 x 10-4 and the volume that you plated was 1 mL.

a. How many bacteria are present in 1 mL of this milk?

b. Is this milk safe to drink by Public Health standards?

Reference no: EM132322063

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