Steroidal saponins in perennial onion Allium schoenoprasum L.

Total spirostanol and furostanol saponins are for the first time isolated from Allium schoe-noprasum. Spirostanol glycoside deltonin and both furostanol glycosides deltоside and protodioscine are identified by the methods of thin-layer chromatography, high-performance liquid chromatography and gas chromatography mass spectrometry. Diosgenin is established to be aglycone of spirostanol glycosides. It is detected in both free condition and products of hydrolysis.