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DictionarySeeindoleindole test
indole test[′in‚dōl ‚test] (microbiology) A test for the production of indole from tryptophan by microorganisms; a solution of para-dimethylaminobenzaldehyde, amyl alcohol, and hydrochloric acid added to the incubated culture of bacteria shows a red color in the alcoholic layer if indole is present. indole test
in·dole testa test used to identify members of the Enterobacteriaceae family and other gram-negative bacilli, based on the ability of the organisms to produce indole from tryptophan. |