GC, GC-MS and NMR spectroscopy Integrated Analysis of the Tunisian Pulicaria laciniata essential oil
Written by sctunisie no commentsThe essential oils from aerial parts and roots of Pulicaria laciniata were obtained by hydro distillation and analyzed by GC and GC-MS. The chemical composition of the root oil of this species is reported here for the first time. Thirty-eight components, accounting for 98.25% and 98.79% of the aerial part and root oils, respectively, were identified. The two oils were characterized by high proportion of oxygenated monoterpenes (68.46 and 85.91%) and belonged to the geranyl isobutyrate (55.91 and 77.92%) chemotype. The phenolic derivatives represented the second major fraction (17.22 and 4.85%) among which cis-isoelemicin (11.04 and 4.85%) was the predominant compound. The major constituent was isolated and identified as (Z)-geranyl isobutyrate 1, by analysis of spectroscopic data (1H-NMR, 13C-NMR, DEPT 135, CHcorr, HMBC, 1H1H COSY and NOESY experiments).
H. Ghouila, F. Hichri, L. Ghribi, S. Barrek, H. Ben Jannet
Essential oil, Pulicaria laciniata, Asteraceae, (Z)-geranyl isobutyrate, 1 and 2D-NMR
Pages: 139-144