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  2. Diagnostic microbiology - Wikipedia

    en.wikipedia.org/wiki/Diagnostic_Microbiology

    The spot indole test is used to determine if a microbe can deaminate tryptophan to produce indole. This test is performed by saturating a piece of filter paper with Indole Kovacs Reagent and scraping a portion of microbe onto the paper. A color to a pink-red color indicates a positive result while no color change indicates the lack of ...

  3. Catalase - Wikipedia

    en.wikipedia.org/wiki/Catalase

    Thénard suggested its breakdown was caused by an unknown substance. In 1900, Oscar Loew was the first to give it the name catalase, and found it in many plants and animals. [ 13 ] In 1937 catalase from beef liver was crystallized by James B. Sumner and Alexander Dounce [ 14 ] and the molecular weight was measured in 1938.

  4. Food microbiology - Wikipedia

    en.wikipedia.org/wiki/Food_microbiology

    Food microbiology is the study of the microorganisms that inhabit, create, or contaminate food.This includes the study of microorganisms causing food spoilage; pathogens that may cause disease (especially if food is improperly cooked or stored); microbes used to produce fermented foods such as cheese, yogurt, bread, beer, and wine; and microbes with other useful roles, such as producing ...

  5. IMViC - Wikipedia

    en.wikipedia.org/wiki/IMViC

    The IMViC tests are a group of individual tests used in microbiology lab testing to identify an organism in the coliform group. A coliform is a gram negative, aerobic, or facultative anaerobic rod, which produces gas from lactose within 48 hours. The presence of some coliforms indicate fecal contamination.

  6. List of microorganisms used in food and beverage preparation

    en.wikipedia.org/wiki/List_of_microorganisms...

    Fermentation (food) Food microbiology; References This page was last edited on 11 December 2024, at 08:10 (UTC). Text is available under the ...

  7. Microbiological culture - Wikipedia

    en.wikipedia.org/wiki/Microbiological_culture

    Motile bacteria (left) will grow out from the stab line while non-motile bacteria (right) are present only along the stab line. Stab cultures are similar to agar plates, but are formed by solid agar in a test tube. Bacteria is introduced via an inoculation needle or a pipette tip being stabbed

  8. Do Air Purifiers Actually Work? Here's What Experts Say - AOL

    www.aol.com/air-purifiers-actually-heres-experts...

    You'll also find UV (ultraviolet light) filters on the market, which often claim to destroy biological impurities like mold or bacteria; but many require higher wattage and greater exposure to be ...

  9. Lactic acid bacteria - Wikipedia

    en.wikipedia.org/wiki/Lactic_acid_bacteria

    The lactic acid bacteria (LAB) are either rod-shaped (), or spherical (), and are characterized by an increased tolerance to acidity (low pH range).This aspect helps LAB to outcompete other bacteria in a natural fermentation, as they can withstand the increased acidity from organic acid production (e.g., lactic acid).

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    microbiology of foodlist of food microorganisms
    food microbiology wikipedia