oxidase test

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ox·i·dase test

a test for the presence of intracellular cytochrome oxidase based on the reaction with p-phenylenediamine; aids in the identification of Neisseria species and Pseudomonadaceae.

oxidase test

a test used to detect the presence of CYTOCHROME c and its associated OXIDASE in BACTERIA. One form of the test involves adding several drops of the oxidase reagent (tetra-methyl-para-phenylenediamine dihydrochloride) to filter paper, then smearing a small amount of the bacterial sample on to the paper. A positive test is indicated by the development of a purple coloration (due to oxidation of the reagent), within about 10 seconds.


any of a class of enzymes that catalyze the reduction of molecular oxygen independently of hydrogen peroxide.

oxidase test
used to identify bacteria that contain cytochrome c oxidase.
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Specific biochemical tests such as gelatin liquefaction, production of levan, catalase test, oxidase test, arginine hydrolysis, indole production, phosphorous solubilization and growth at 4 and 41[degrees]C were conducted for identification of P.
levan formation, arginine hydroysis, indole production, phosphorous solubilization, gelatin liquefaction, oxidase test and catalase test (Table 3) which confirmed the identification of the selected isolates (I-7, I-15, I-18, I-23, I-24 and I-25) to be P.
Micrococci were identified by morphology, colony charecters and oxidase test.
Biochemical activities of the isolated bacteria were analyzed by different biochemical tests such as amylase production, cellulase production, degradation of pectin, hydrolysis of gelatin, casein hydrolysis, urease test, hydrogen sulfide production, carbohydrate catabolism, IMVic tests, citrate utilization, catalaste test and oxidase test.
All the seven isolates were positive for oxidase test.
Characteristic of other Bacterial isolates from Amirthi forest Biochemical VITNJ1 VITNJ2 VITNJ3 VITNJ4 VITNJ5 Properties Gram Staining + + + + + Shape Rod Rod Rod Rod Rod Indole test - - - - - Methyl red test - - + + - Voges Proskauer + + + + - Citrate Utilization + + + + + Oxidase test - - + + - Catalase Test - - + + + Urease - - - - - Biochemical VITNJ6 VITNJ7 VITNJ8 VITNJ9 Properties Gram Staining + + - + Shape Rod Rods Rods Rods Indole test - + - - Methyl red test - - - + Voges Proskauer - - + + Citrate Utilization - - + - Oxidase test - - - + Catalase Test + + + + Urease - - - - Table 3.
On the basis of growth on McConkey agar media, oxidase test and oxidative-fermentative glucose tests the strains were grouped according to Weaver-Hollis scheme.
GPC were identified by catalase, coagulase, and modified oxidase tests.
Representatives of each colony type were streaked for isolation on petri dishes containing tryptic soy agar (TSA) in order to perform oxidase tests and identification.
Several studies have examined the validity of blue food dye, gastric residual volumes, and glucose oxidase tests as markers of pulmonary aspiration (Lukan et al.