A thermal process is being used to reduce the microbial population in food containers. The spoilage microorganism has a D115°C of 2.0 minutes and z value of 9ᵒC. The initial microbial population is 104 per container. A 9D process has been recommended. 1) Determine the spoilage probability. 2) Estimate Thermal Death Time, F Value at 121ᵒC

b.

explanation:

10.0

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =