抄録
Methanol extracts prepared by mild and careful procedure from cultured cells of P___-. lobata were analyzed by reverse phase high performance liquid chromatography (HPLC) to reveal that most of the isoflavone 7-O___--glucosides daidzin(1) and genistin(2), and 8-C___--glucoside puerarin(3), exist as their 6"-O___--malonyl esters. The presence of malonyl esters of 1, 2 and 3 was also detected in the fresh roots and stems of P___-. lobata.
