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Category: Biochemical Tests

link to Biochemical Tests for Bacterial Identification

Biochemical Tests for Bacterial Identification

In this blog post, I am sharing information about the standard, conventional biochemical tests and their primary uses in the Microbiology laboratory for identifying pathogens of interest. Some of the...

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link to Culture Media: PH Indicators, Color of Colonies

Culture Media: PH Indicators, Color of Colonies

Colony color or pigmentation is mostly exploited characteristics of bacteria which aids in the differentiation and identification of the isolates. Except where there is a growth of pigmented...

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link to Urease Test: Principle, Procedure, Results

Urease Test: Principle, Procedure, Results

Urease is a constitutively expressed enzyme that hydrolyzes urea to carbon dioxide and ammonia. Many organisms especially those that infect the urinary tract, have a urease enzyme that is able to...

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link to Oxidase Test: Principle, Procedure, Results

Oxidase Test: Principle, Procedure, Results

The oxidase test is a technique for detecting the presence of the terminal enzyme system in aerobic respiration called cytochrome C oxidase or cytochrome a3. Usually, the family Enterobacteriaceae...

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link to Coagulase Test: Principle, Procedure, Results

Coagulase Test: Principle, Procedure, Results

The coagulase test helps to identify Staphylococcus aureus which produces the enzyme coagulase (coagulates) plasma from coagulase-negative staphylococci (CONS). Coagulase is also the virulence factor...

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link to Indole Test: Principle, Procedure, Results

Indole Test: Principle, Procedure, Results

Indole test (Left: negative; Right: positive) Indole test is used to determine the ability of an organism to split amino acid tryptophan to form the compound indole. It is used as part of the...

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Microbeonline.com is an online guidebook on Microbiology, precisely speaking, Medical Microbiology. This blog shares information and resources about pathogenic bacteria, viruses, fungi, and parasites.  We are trying our best to make this site user-friendly and resourceful with timely/updated information about each pathogen, disease caused by them, pathogenesis, and laboratory diagnosis.

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