Glucosinolates are sulfur-containing phytochemicals present in the families Brassicaceae (cabbage, broccoli, mustard, etc.), Capparaceae (capers), etc. There are three major types of glucosinolates, aliphatic, aromatic, and indolic. These types are synthesized from different amino acid precursors: alanine, isoleucine, leucine, methionine, and valine for aliphatic glucosinolates, phenylalanine and tyrosine for aromatic glucosinolates, and tryptophan for indolic glucosinolates.1)
Glucosinolates are hydrolyzed by the endogenous enzyme, myrosinase, to yield isothiocyanates, thiocyanates, nitriles, and elementary sulphur.2) Benzyl isothiocyanate is a product of the enzymatic hydrolysis of glucotropaeolin2,3) and is one of the most intensively studied isothiocyanates as an anti-cancer agent.4-10) The compound shown above is glucotropaeolin potassium salt (1).
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Published TCIMAIL newest issue No.198
