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8 May, 04:21

What is the concentration of a suspension that grew 89 colonies on a plate with a dilution of 1:100?

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  1. 8 May, 07:31
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    8900 CFU/mL

    Explanation:

    Colony Forming Units (CFU) is a value that indicates the degree of microbiological contamination of an environment. It expresses the relative number of microorganisms of a given taxon in a volume of one cubic meter of water.

    UFC is the minimum number of separable cells on the surface, or inside, of a semi-solid agar medium that results in the development of a visible colony of the order of tens of millions of descending cells. The CFUs can be pairs, chains or clusters, as well as individual cells. Colony forming unit.

    Calculation

    Colonies * Dilution = CFU/mL

    89 * (100 / 1 mL) = CFU/mL

    8900 CFU/mL
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