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  2. Etest - Wikipedia

    en.wikipedia.org/wiki/Etest

    Etest is a quantitative technique for determining the antibiotic sensitivity and minimum inhibitory concentration (in μg/mL) of some bacteria including Gram-negative and Gram-positive aerobic bacteria such as Enterobacteriaceae, [2] Pseudomonas, [2] [3] [4] Burkholderia, [2] [5] Staphylococcus, [6] and Enterococcus [7] species and fastidious bacteria, such as anaerobes, N. gonorrhoeae, S ...

  3. Gram stain - Wikipedia

    en.wikipedia.org/wiki/Gram_stain

    Gram stain (Gram staining or Gram's method), is a method of staining used to classify bacterial species into two large groups: gram-positive bacteria and gram-negative bacteria. It may also be used to diagnose a fungal infection . [ 1 ]

  4. Diagnostic microbiology - Wikipedia

    en.wikipedia.org/wiki/Diagnostic_Microbiology

    A pure culture is isolated and spread directly on a stainless steel or disposable target. The cells are lysed and overlaid with a matrix, which forms protein complexes with the bacterial proteins. The MALDI fires a laser and ionizes the protein complexes, which break off and travel up the vacuum where they are detected based on mass and charge.

  5. McIntosh and Fildes' anaerobic jar - Wikipedia

    en.wikipedia.org/wiki/McIntosh_and_Fildes...

    The culture: The culture media are placed inside the jar, stacked up one on the other, and; Indicator system: Pseudomonas aeruginosa, inoculated on to a nutrient agar plate is kept inside the jar along with the other plates. This bacteria need oxygen to grow . A growth free culture plate at the end of the process indicates a successful ...

  6. Analytical profile index - Wikipedia

    en.wikipedia.org/wiki/Analytical_profile_index

    Identification is only possible with a microbiological culture.API test strips consist of wells containing dehydrated substrates such as the redox substrates, electrogenic substrates and luminogenic substrates to detect enzymatic activity, usually related to the fermentation of carbohydrate or catabolism of proteins or amino acids by the inoculated organisms.

  7. Colonial morphology - Wikipedia

    en.wikipedia.org/wiki/Colonial_morphology

    Examining colonial morphology is the first step in the identification of an unknown microbe. The systematic assessment of the colonies' appearance, focusing on aspects like size, shape, colour, opacity, and consistency, provides clues to the identity of the organism, allowing microbiologists to select appropriate tests to provide a definitive ...

  8. Microbiological culture - Wikipedia

    en.wikipedia.org/wiki/Microbiological_culture

    A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in predetermined culture medium under controlled laboratory conditions. Microbial cultures are foundational and basic diagnostic methods used as research tools in molecular biology .

  9. Isolation (microbiology) - Wikipedia

    en.wikipedia.org/wiki/Isolation_(microbiology)

    Gram-negative bacteria will stain a pink color due to the thin layer of peptidoglycan. If a bacteria stains purple, due to the thick layer of peptidoglycan, the bacteria is a gram-positive bacteria. [4] In clinical microbiology numerous other staining techniques for particular organisms are used (acid fast bacterial stain for mycobacteria).

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    bacterial culture identification pdf template printable form blank free