Voges Proskauer (VP) test is used to differentiate between the members of Enterobacteriaceae family. Introduction to Voges Proskauer (VP) Test: The Voges Proskauer test is named after two microbiologists, Voges and Proskauer who were working together in 1898. The test was accidently formulated for the first time, when they observed the formation of red color […]
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A pH indicator is basically a chemical compound which is added to a solution to visually determine the pH (acidity or basicity) of the solution. The characteristic color changes indicate the acidic, basic, or neutral character of the substance being tested. Introduction to pH Indicator pH indicators or acid-base indicators are chemical substances, which indicate the change
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Nomenclature is the set of rules and conventions which preside over the naming of taxa, while Classification is the grouping of organisms on the basis of phylogeny and phenotype. The science of Classification, Nomenclature, and identification is known as Taxonomy. In this vast living world, having a system of naming and grouping bacteria and other
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Media Preparation has become really simple these days. It is quite easy to make any complex media owing to the scientific advancements. Media Preparation Microorganisms are found everywhere; they are present in soil, water, air, and sewage and on the surface of animal and plant. Hence, they are called as omnivorous. As a microbiologist, if
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Introduction to Indole Test: Indole test is used for characterization of coliforms. Coliforms are the bacteria that are present in our digestive system. The coliforms are members of Enterobacteriaceae family. Morphologically these bacteria are rod shaped and gram-negative type. Indole test is one of the ideal methods used to distinguish the E.coli from Enterobacter and
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