MicroBiology Question According to the above profile, what is the D_102 value? I

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MicroBiology Question

According to the above profile, what is the D_102 value? If the Z value of this organism is 2 degree C, what are the D_100 and D_106 values? According to the above profile, how much time would be required to sterilize a broth culture containing 10^6 cells in the lab at 104 degree C? Raw milk contains a bacterial population of 2 Times 10^6 cells/mL. If the D_72 value of these bacteria is 7.5 seconds, how many bacteria would remain after a HTST pasteurization? How much time would be required at 65 degree C to obtain the same inactivation factor obtained in the previous question if the Z value of this bacteria at 7 degree C?

Explanation / Answer

8. D value is the time required to reduce the population size by 90%. From the above graph, the initial population is 1000* 108 CFU/mL. Then 100* 108 CFU/mL is the 90% population.

From the graph, we can say that the D120 value is = 14 Sec.

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