This post was most recently updated on April 30th, 2019Whenever you see the name of this test i.e. Triple Sugar Iron Agar, you have to remember that it’s a test which has three sugar (Lactose, Sucrose, […]
This post was most recently updated on April 20th, 2019Streptococcus pneumoniae strains are sensitive to the chemical optochin (ethylhydrocupreine hydrochloride). Optochin sensitivity allows for the presumptive identification of alpha-hemolytic streptococci as S. pneumoniae, although some […]
This post was most recently updated on August 10th, 2016Principle: The bile (sodium deoxycholate) solubility test distinguishes Streptococcus pneumoniae from all other alpha-hemolytic streptococci. Streptococcus pneumoniae is bile soluble whereas all other alpha-hemolytic streptococci are […]
This post was most recently updated on April 16th, 2019Citrate utilization test is commonly employed as part of a group of tests, the IMViC (Indole, Methyl Red, VP and Citrate) tests, that distinguish between members […]
This post was most recently updated on August 10th, 2016Bacitracin is a bactericidal drug useful in the treatment of superficial skin infections but too toxic for systemic use. Bacitracin is a polypeptide antibiotic produced by […]
This post was most recently updated on October 5th, 2016In this blog post, i am sharing information about common, conventional biochemical tests and their primary uses in Microbiology laboratory for the identification of particular pathogen […]
This post was most recently updated on March 26th, 2019Colony 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 […]
This post was most recently updated on April 26th, 2018Salmonella is a Gram-negative, rod-shaped, motile bacilli which moves with the use of its peritrichous flagella. The genus Salmonella can be divided into two species (S. […]
This post was most recently updated on April 16th, 2019 Medium used for urease test: Any urea medium, agar or broth (It can be a sole medium or part of panel like motility indole urease (MIU) […]
This post was most recently updated on April 30th, 2019 The oxidase test is used to identify bacteria that produce cytochrome c oxidase, an enzyme of the bacterial electron transport chain. When present, the cytochrome […]
This post was most recently updated on April 30th, 2019 Coagulase test is used to differentiate Staphylococcus aureus (positive) from Coagulase Negative Staphylococcus (CONS). Coagulase is an enzyme produced by S. aureus that converts (soluble) […]
This post was most recently updated on May 10th, 2017Indole test is used to determine the ability of an organism to split amino acid tryptophan to form the compound indole. Tryptophan is hydrolysed by tryptophanase to […]
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