Crystalline Reagent for detection of indole derivatives, particularly the assay of tryptophanase and apotryptophanase. Turner, J.M., Biochem. J. , 78 : 790 (1961).
Application Reagent for assay of indole product of apotryptophanase and tryptophanase.1 DMAC produces colored adducts with flavanols for subsequent HPLC.2,3 It has been used in a chromogenic method for quantifying proanthocyandines in cranberry powder.4,5
Components Composition per 100 ml:Dimethylaminocinnamaldehye 1 gHydrochloric acid (concentrated) 1.0 mldistilled water 99.0 ml Application Used to determine the ability of an organism to split indole from the tryptophan molecule. Other Notes Reagent for the rapid identification of Streptococci.1,2