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The spot indole test is used to determine if a microbe can deaminate tryptophan to produce indole. This test is performed by saturating a piece of filter paper with Indole Kovacs Reagent and scraping a portion of microbe onto the paper. A color to a pink-red color indicates a positive result while no color change indicates the lack of ...
The United States Pharmacopeia (USP) outlines several tests that can be done to quantitatively determine the bioburden of non-sterile drug products. [4] It is important when conducting these tests to ensure that the testing method does not either introduce bacteria into the test sample or kill bacteria in the test sample. [4]
an organic compound; primary use is to couple amino acids during artificial peptide synthesis Diethyl azodicarboxylate: a valuable reagent but also quite dangerous and explodes upon heating Diethyl ether: organic compound; a common laboratory solvent Dihydropyran: a heterocyclic compound; used as a protecting group for alcohols in organic ...
In microbiology, the minimum inhibitory concentration (MIC) is the lowest concentration of a chemical, usually a drug, which prevents visible in vitro growth of bacteria or fungi. [ 1 ] [ 2 ] MIC testing is performed in both diagnostic [ 1 ] [ 2 ] and drug discovery laboratories.
Microtox is an in vitro testing system which uses bioluminescent bacteria (Allivibrio fischeri, formerly known as Vibrio fischeri) to detect toxic substances in different substrates such as water, air, soils and sediments. [1] Allivibrio fischeri are non-pathogenic, marine, bacteria that luminesce as a natural part of their metabolism. [2]
The analyte can be a drug, biochemical substance, chemical element or compound, or cell in an organism or organic sample. [ 1 ] [ 2 ] An assay usually aims to measure an analyte's intensive property and express it in the relevant measurement unit (e.g. molarity , density , functional activity in enzyme international units, degree of effect in ...
The esterification reaction tests for the presence of alcohol and/or carboxylic acids; The Griess test tests for organic nitrite compounds; The 2,4-dinitrophenylhydrazine tests for carbonyl compounds; The iodoform reaction tests for the presence of methyl ketones, or compounds which can be oxidized to methyl ketones; The Schiff test detects ...
Microbiology (from Ancient Greek μῑκρος (mīkros) 'small' βίος (bíos) 'life' and -λογία () 'study of') is the scientific study of microorganisms, those being of unicellular (single-celled), multicellular (consisting of complex cells), or acellular (lacking cells).
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