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You calculate based on A600 that a suspension contains 2.04 x 108 CFU ml-1 How many...
please help me understand step by step how to figure out these
problems.
Equation 3: CFU/mL = number of colonies/mL plated TDF of the culture used for plating For example, consider the sketch below. Using the information in the figure, the plate with 50 colonies would be chosen. 1.0 mL 1.0 mL 1.0 L 1.0 mL 1.0 mL A 0.1 ml de 2.0m00m 100 m 9.0 ml 9.0 ml 9.0 mi 9.9 ml 9.0 ml Original culture 1.0 ml 2.0...
A pharmaceutical product contains 1 x 100 cfu/mL, how many decimal reductions are required to reach the accepted Sterility Assurance Level (SAL)? A. 0.15 B. 1.5 C. 10 D. 15 E. 150
What is the concentration of cells in the starting sample if 1
ml was plated per dilution and the starting sample was river
water?
Report your answer below as a decimal with one significant digit
after the decimal and report the exponent the separate box. See
this example, if your answer is 5.2 x 108 you would
report it as "5.2"
You have the following results from a serial dilution experiment: Sample Dilution Plate Count 1:101 Too many to count...
You have a stock solution of A. pasteurianus at a concentration of 5 x 108 cfu/ml. If you take 10µl of this stock solution and place it in 990µl of sterile broth culture media, what is the concentration of cells in the broth culture?
A food product contains 1 x 106 CFU/g of Escherichia coli. Heating at 80 C for 10 minutes will reduce this population to 1 x 104 CFU/g. The z-value of this E. coli strain is 3 C. How long would this food product have to be heated at 89 C to achieve the same microbial destruction?
bacterial growth curve help
whats wrong with each graph using the chart provided.
Table 6.3. Data Used to construct Figure 6.10 and 6.11. Hour Absorbance Cfu/ml 0.16 x 10 0.16 x 10 0.16 x 10 0.16 x 10 0.78 x 10 1.98 x 10 2.53 x 10% 3.13 x 10% 4.38 x 10 5.97× 106 9.41 x 10 11.9 x 10 14.7 x 10 21.0× 106 22.0× 106 22.2 x 10% 0.01 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0...
Count the number of CFU from each of the plates (record TNTC if there are too many to count). Record your counts below and calculate the total number of bacteria per mL and the number of ampicillin-resistant bacteria per mL in the chicken fluid. Show all your calculations in a neat logical manner in the workspace on page 4. Plate Count Plates Without Ampicillin Dilution CFU/Plate Plate # 1 Plate # 2 Average/Plate CFU/mL of Fluid 10-4 52 80 66...
How many mL are in 0.468 gallons? (1.000 gallons = 3.785 L) 5.19 x 102 mL 2.57 x 103 mL 1.43 x 103 mL 9.31 x 102 mL 1.77 x 103 mL
Use minitab if possible. If it is, please show step by step
process of how you did it.
Surface roughness of steel is investigated. The method of surface manufacturing largely determines roughness of the surface. One of the parameters to describe the roughness is Rz, the maximum height of the surface irregularities profile. R (in um) is measured for 21 random places on the surface of forged details and 21 random places on the surface of casted details as follows....
24) Two groups of randomly selected drivers are surveyed to see how many miles per week they drive for pleasure trips. At alpha equal to 0.01, can it be concluded that single drivers do more driving for pleasure trips on average than married drivers? Assume the population standard deviation for single drivers to be 16.7 and the population standard deviation for married drivers to be 16.1. Test the hypothesis using the methods listed below. Single drivers 110 97 Married drivers...