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Bacterial Concentration Calculator

Formula

The formula to calculate the Bacterial Concentration (BC) is:

$\text{BC} = \frac{\text{C} \times \text{DF}}{\text{VC}}$

Where:

$\text{BC}$ is the bacterial concentration (cfu/ml)
$\text{C}$ is the number of colonies
$\text{DF}$ is the dilution factor
$\text{VC}$ is the volume of the culture plate (ml)

What is a Bacterial Concentration?

A bacterial concentration is a measure of the total number of bacteria per unit of weight or volume. This is typically measured in colony-forming units per milliliter of culture (cfu/ml).

Example Calculation

Let's assume the following values:

Number of Colonies (C) = 100
Dilution Factor (DF) = 10
Volume of Culture Plate (VC) = 1 ml

Using the formula:

$\text{BC} = \frac{100 \times 10}{1} = 1000$

The Bacterial Concentration (BC) is 1000 cfu/ml.