| Abstrakt: |
Eight triterpenoids (lupeol, taraxasterol, α-amyrin, β-amyrin, 3-O-acetyllupeol, 3-O-acetyl- α -amyrin, 3-O-acetyl- β-amyrin, and 3-O-acetyltaraxasterol) were identified for the first time in ovate-leaf atractylodes [Atractylodes ovata (Thunb.) DC.] growing in Primorsky Territory of the Russian Far East using 13C NMR spectroscopy and mass spectrometry with electron-impact ionization. The effect of the nature of the extractant (hexane, CCl4 , 95% EtOH) on the yield of triterpenoids from the aboveground and underground organs of A. ovata was studied. The triterpenoids were extracted most from the starting raw material using CCl4 (inflorescences, 4.87%; leaves, 1.41%; roots, 0.25%); least, using EtOH (inflorescences, 2.04%; leaves, 1.25%; roots, 0.10%). The compositions of triterpenoids in extracts of the aboveground and underground organs of A. ovata were determined by GC-MS. Lupeol was shown to be the dominant triterpenoid in leaves and roots of A. ovata (0.39 ± 0.03 and 0.10 ± 0.02%, respectively), whereas 3-O-acetyl- β-amyrin dominated in inflorescences (1.11 ± 0.04%). [ABSTRACT FROM AUTHOR] |
