indole has various use in industries of perfume, pharma . It is used to prepare jasmine oil, orange oil and it is found in coal tar.
class of alkaloids containing a structural moiety of indole.
Sulfur Indole Motility test
Indole test,Proteus vulgaris is be indole positive and Citrobacter freundii will be indole negative
this test is done to determine if bacteria can breakdown the amino acid tryptophan into indole
The indole positive test is used to test the absence or presence of the vibro cholera.
The indole test is a biochemical test performed on bacterial species to determine the ability of the organism to split indole from the amino acid tryptophan. This division is performed by a chain of a number of different intracellular enzymes, a system generally referred to as "tryptophanase."
C8H7N
tryptophanase
S.aureus is a positive gram. Indole test is a part the biochemistry test to determinate a bacteria negative gram. indole test used to determine S.aureus, the result is negative. That is improve which S.aureus haven't trytophanase enzym (please see indole test principle)bcb
Indole is extracted from the medium and into the reagent layer (Kovac's) by the acidified butyl alcohol component and forms a complex with the p-dimethylaminobenzaldehyde, yielding the cherry red color seen when the culture is indole positive.
K. oxytoca will be indole-positive while K. pneumonia is indole-negative
Staphylococcus aureus is negative for motility, and positive for the indole production. The SIM test tests for sulfur reduction, indole production and motility. Positive for indole production means tryptophan is broken down into indole and pyruvate and will give a red color. Motility, you will see the bacteria move outside of the stab. Positive for sulfur reduction will give a black color in the medium.