Ellagic acid formation from galloylglucoses by a crude enzyme of Cornus capitata adventitious roots

The aqueous extract of acetone powder, which had been prepared from Cornus capitata 'Mountain Moon' adventitious roots, cultured in MS medium with a h igh concentration of Cu2+(10 muM), showed strong oxidative activity toward galloylglucoses. A compound formed from galloyglucoses, such as 1,2,3,4,6-p enta-O-galloyl-beta -D-glucose and tannic acid, by the reaction with the cr ude enzyme solution of the adventitious roots was isolated and characterize d as ellagic acid by spectrometric analyses.