This post was most recently updated on August 26th, 2019Kligler’s Iron Agar (KIA) is used for the detection of carbohydrate fermentation. Reactions of KIA helps to include/exclude particular bacterial isolate in the family Enterobacteriaceae. If […]
This post was most recently updated on April 30th, 2019Phenylalanine deaminase test also known as phenylpyruvic acid (PPA) test is used to test the ability of an organism to produce enzyme deaminase. This enzyme removes […]
This post was most recently updated on August 24th, 2019The oxidative-fermentative (OF) test was developed by Hugh and Leifson in 1953. They developed OF media to differentiate between oxidative bacteria (that produces acid from carbohydrates […]
This post was most recently updated on August 25th, 2019Voges-Proskauer is a double eponym, named after two microbiologists working at the beginning of the 20th century. They first observed the red color reaction produced by […]
This post was most recently updated on May 2nd, 2019Hippurate is the glycine conjugate of benzoic acid. When hippurate is hydrolysed by an organism glycine and benzoic acid are formed. In the classical test (48 […]
This post was most recently updated on April 30th, 2019Salmonella is a member of the family Enterobacteriaceae. It is a Gram-negative bacilli, motile and non-lactose fermenter. The genus can be divided into two species (S. […]
This post was most recently updated on August 25th, 2019Methyl Red (MR) test determines whether the microbe performs mixed acids fermentation when supplied glucose. Types and proportion of fermentation products produced by anaerobic fermentation of […]
This post was most recently updated on October 20th, 2019Catalase is an enzyme, which is produced by microorganisms that live in oxygenated environments to neutralize toxic forms of oxygen metabolites; H2O2. The catalase enzyme neutralizes […]
This post was most recently updated on February 16th, 2017Each of the letters in “IMViC” stands for one of these tests. “I” is for indole; “M” is for methyl red; “V” is for Voges-Proskauer, and […]
This post was most recently updated on July 13th, 2016MUG is an acronym for 4-methylumbelliferyl-beta-D-glucuronide. Escherichia coli produces the enzyme beta-D-glucuronidase. Beta-D-glucuronidase is a enzyme which hydrolyzes the beta-D-glucopyranosid-uronic derivatives to aglycons and D-glucuronic acid. The substrate […]
This post was most recently updated on September 9th, 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 August 26th, 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 […]
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