2. A researcher analyzes unpasteurized apple juice suspecting E. coli contamination of the juice. He/she plates out 0.1 mL of a 10-2 dilution of juice on each plate and grows up the plates. Helshe then counts colonies on each plate. Plate 1-242 colonies Plate 2- 237 colonies Plate 3 - 249 colonies (a) Calculate the CFU/mL for this juice. Show formula used and include units. (b) If acceptable levels of E. coli in juice were 0.02 CFU/ml juice, would this juice be acceptable for human consumption? Why or why not?

2. A researcher analyzes unpasteurized apple juice suspecting E. coli contamination of the juice. He/she plates out 0.1 mL of a 10-2 dilution of juice on each plate and grows up the plates. Helshe then counts colonies on each plate. Plate 1-242 colonies Plate 2- 237 colonies Plate 3 - 249 colonies (a) Calculate the CFU/mL for this juice. Show formula used and include units. (b) If acceptable levels of E. coli in juice were 0.02 CFU/ml juice, would this juice be acceptable for human consumption? Why or why not?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter26: Prokaryotes: Bacteria And Archaea

Section: Chapter Questions

Problem 8TYK

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Similar questions

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A researcher analyzes unpasteurized apple juice suspecting E. coli contamination of the juice. He/she plates out 0.1 mL of a 10-2 dilution of juice on each plate and grows up the plates. He/she then counts colonies on each plate. Plate 1 – 242 colonies Plate 2 – 237 colonies Plate 3 – 249 colonies Calculate the CFU/mL for this juice. Show formula used and include units
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