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Colony Forming Units (CFU) Definition and Explanation PDF | Download eBooks

Learn Colony Forming Units (CFU) definition in microbiology with explanation to study “What is Colony Forming Units (CFU)”. Study colony forming units (cfu) explanation with microbiology terms to review microbiology course for online degree programs.

Colony Forming Units (CFU) Definition:

  • Number of microorganisms that form colonies when cultured using spread plates or pour plates, an indication of the number of viable microorganisms in a sample.

    Prescott's Microbiology 9th Edition by Joanne Willey, Linda Sherwood, Christopher J. Woolverton



Colony Forming Units (CFU) Explanation:

Colony-Forming Unit (CFU) is a unit that estimates the number of viable fungal or bacterial cells in a sample. Viable is the ability of cells to divide and multiple by binary fission under the controlled conditions. Counting with CFUs requires growing and culturing the microbes and only the viable cells are counted in contrast with the examining done by microscope in which all the cells, living or dead, are counted.

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