Hopkin’s Cole Test Definition Hopkin’s Cole test is a specific test used for the detection of indole ring and thus, tryptophan in proteins. The test is also termed as ‘glyoxylic acid test’ as the reagent contains glyoxylic acid. The test … Read more
Indole Test Definition Indole test is a biochemical test conducted on bacterial species to detect their ability to produce indole from tryptophan in the presence of a group of enzymes called ‘tryptophanase’. It is a qualitative test that tests the … Read more
Objective of Spot Indole Test To determine the ability of organism for the production of indole by the action of tryptophanase enzyme. Principle of Spot Indole Test Intracellular enzyme tryptophanase mediate the production of indole by hydrolytic activity against amino acid Tryptophan. … Read more