Date: Tue, 16 Feb 1999 22:41:41 -0600 From: "R. Solarion" <galaxy37@1starnet.com> Subject: [CH] Hot Chinese Mustard Dear Chile-Heads and Others - Question. What spice ingredient is added to Chinese mustard to give it that "hot" taste? Obviously it is not any form of red pepper, or else that would change the color of the yellow mustard. Thanks for the information. Robertino ~~~ John Ratzenberger sez: Mustard's "hot" is NOT from capsaicinoids. Cruciferae (Cabbage family). This is a large family of 3200 species in 375 genera. It is also known as the Brassicaceae. The plants are found chiefly in northern temperate regions, and especially in the Mediterranean area, but are of cosmopolitan distribution. The herbs called mustard are are cultivated for their seeds, which are ground and used as a condiment. Isothiocyanates are naturally occurring compounds found in a variety of cruciferiae. Certain isothiocyanates, are derived from compounds known as glucosinolates by the action of myrosinase, an enzyme. When you "bruise" the seed, the enzyme is released. Powdered mustard seed should be mixed with cold water. Hot water will kill the enzymes and produce a bitter flavor. Isothiocyanates at nontoxic concentrations when provided in the diet are very potent inhibitors of lung and esophageal cancer in rodents induced by the tobacco specific nitrosamines. The isothiocyanates exert their inhibitory effects via competitive inhibition of cytochrome P-450 enzymes involved in the metabolic activation of the nitrosamines. More details at: http://antoine.frostburg.edu/chem/senese/101/features/capsaicin.shtml http://bodd.cf.ac.uk/BotDermFolder/BotDermC/CRUC.html