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What is Acid Fast in Microbiology? PDF | Download eBooks

Learn Acid Fast definition in microbiology with explanation to study “What is Acid Fast”. Study acid fast explanation with microbiology terms to review microbiology course for online degree programs.

Acid Fast Definitions

  1. Refers to bacteria (e.g., mycobacteria) that cannot be easily decolorized with acid alcohol after being stained with dyes such as basic fuchsin.

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



  2. A term referring to the property of mycobacteria to retain carbol fuchsin even in the presence of acid alcohol. staining procedure is used to diagnose tuberculosis.

    Foundations in Microbiology by Kathleen Park Talaro, Arthur Talaro



Acid Fast Explanation

Acid-fast are the organisms or bacteria such as mycobacteria, whose cell walls contain lipid substances in large amounts and are known as mycolic acids. These cell walls cannot be stained by ordinary Gram stains, therefore, dyes such as fuchsin can be used to stain these lipids in the cell walls and this dye cannot be decolorized easily by using acid alcohol.

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