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Category: Biochemical Tests

link to Tests for Bacterial Motility: Procedure, Results

Tests for Bacterial Motility: Procedure, Results

The motility test is used to determine whether an organism is motile or non-motile. Motile organisms contain flagella which helps them to travel beyond the point of inoculation. Motile bacteria are...

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link to Nagler’s Reaction (Lecithinase Test)

Nagler’s Reaction (Lecithinase Test)

Lecithinase test or Nagler's reaction is a biochemical test used to identify organisms that liberate phospholipases (lecithinases) e.g. Clostridium perfringens. The alpha (α) toxin of C. perfringens...

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link to Acetate Utilization Test: Principle, Procedure, Uses

Acetate Utilization Test: Principle, Procedure, Uses

Acetate utilization test is used to determine if an organism can use acetate as the sole source of carbon. Acetate agar containing sodium acetate as the sole carbon source and inorganic ammonium...

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link to Butyrate Disk Test: Principle, Procedure, Results, Uses

Butyrate Disk Test: Principle, Procedure, Results, Uses

The butyrate disk test is a rapid test detecting the enzyme butyrate esterase. When used in conjunction with characteristic morphology on a blood agar plate, typical Gram stain, and a positive...

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link to API 20E Test System: Results and Interpretations

API 20E Test System: Results and Interpretations

API (Analytical Profile Index) 20E is a biochemical panel from bioMerieux, Inc. for identifying and differentiating members of the family Enterobacteriaceae. The plastic strip holds twenty...

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link to Nitrocefin test: Principle, Procedure, Uses

Nitrocefin test: Principle, Procedure, Uses

The nitrocefin biochemical test is a sensitive technique for detecting beta-lactamase-producing strains of N. gonorrhoeae, H. influenzae, Staphylococcus spp, Enterococcus spp, and...

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