Control of Microbial Growth

QN1.A company has developed a new disinfectant, agent X, which they claim kills 99.999% of microorganisms following an exposure of 30 seconds. If the company’s claims are correct, under the manufacturer’s recommendations, agent X should reduce a bacterial load by how many logs?

Given the information presented in the previous question, what is the D value under the manufacturer’s recommended conditions?

Given the information presented in question 1, how long an exposure to agent X would be required to reduce a bacterial load from 104 to 0.001 bacteria?

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