Studies on the Steroidal Components of Domestic Plants. LV. The Steroidal Sapogenins of the Female Flowers and the Seeds of Dioscorea tokoro MAKINO

Abstract

Steroidal sapogenins were extracted from the seeds and the female flowers of D. tokoro MAKINO. The sapogenins isolated as crystals from the female flowers were diosgenin, yonogenin, tokorogenin and a new sa pogenin, igagenin, and that from the seeds was tokorogenin. Marked differences between the seeds and the female flowers were found in regards to the sorts and the amounts of sapogenins.