DefinitionThis section has been translated automatically.
Glucoside of o-coumaric acid (bound coumarin), which occurs as a precursor of coumarin e.g. in Galium odoratum(woodruff) or in sweet clover (Meliolotus officinalis). After enzymatic hydrolysis (e.g. during wilting), the genuinely present trans-cumaric acid is isomerised under UV light to cis-cumaric acid (coumarin acid), which is then transformed in cyclised form (lactonised) to coumarin. Only then does the aromatic smell typical of woodruff develop.
Prof. Dr. med. Peter Altmeyer
Prof. Dr. med. Martina Bacharach-Buhles
