Essential oil composition of seven populations belonging to twoNepetaspecies from Northwestern Iran

Abstract

Essential oils from the aerial parts of three populations of Nepeta crassifolia (Lamiaceae), which are Iranian endemic species and four populations of N. nuda grown in northwestern Iran were obtained by hydro-distillation and examined by gas chromatography (GC) and GC-mass spectrometry (GC/ MS). Overall, 37 compounds were identified in the essential oils from different populations of N. crassifolia and N. nuda. The essential oils consisted mainly of oxygenated monoterpenes and sesquiterpene aldehydes. The major components in the oils of three populations of N. crassifolia were 4aβ, 7α, 7aβ-nepetalactone (16.46-27.45%), 4aα, 7α, 7aβ-nepetalactone (13.45-17.54%), 1,8-cineole (8.15-9.70%) and elemol (14.38-22.14%), while 7aβ-nepetalactone (61-72.21%), 4aα, 7α, 7aβ-nepetalactone (8.72-12.63%), pulegone (7.36%) and piperitenone oxide (4.12%) were identified as the main constituents in the oils of four populations of N. nuda. The essential oils from the aerial parts of two species of Nepeta sourced in northwestern Iran were rich in oxygenated monoterpenes. In conclusion, the present study indicated the essential oil components of wild populations of both Nepeta species varied with chemotypes, environmental conditions, and geographic origin.

Phytochemical Variation within Aerial Parts of Ferula cupularis Populations, an Endangered Medicinal Plant from Iran

“…However, no significant difference in FC2 as the weakest one was detected compared to FC3. Based on literature review, there are many reports on medicinal plants such as Salvia reuterana , [2] Rhus coriaria , [25] Nepeta crassifolia , N. nuda , [26] Trachyspermum ammi , [27] and Achillea wilhelmsii , [28] confirming the EO yield discrepancy among the populations located at different geographical conditions. The EO accumulation in the Ferula genus has been observed to vary considerably depending on species and organ type [7,19] .…”

Phyto-pharmacological aspects of Nepeta nuda L.: A systematic review

“…In N. nuda grown in Bulgaria a complex mixture of iridoid compounds is confirmed; except E,E-nepetalactone isomer (with 62.0 %), 4a,7a-dehydronepetalactone was present in low concentration (1.3 %) (Handjieva et al, 1996). In the four populations of N. nuda from Iran collected from different localities, the Z,Z-nepetalactone was dominant (from 61.0 to 72.2 %), followed by E,Z-nepetalactone (8.7-12.6 %) (Narimani et al, 2017). N. nuda subsp.…”

Chemical Profile of Ruta graveolens, Evaluation of the Antioxidant and Antibacterial Potential of Its Essential Oil, and Molecular Docking Simulations

“…However, the proportions and nature of the identified chemical compounds of the analysed EOs are not always the same compared with the previous studies. These differences may be due to genetic, distinct environmental and climatic conditions, geographic origins, and plant populations [49,50].…”

“…studies. These differences may be due to genetic, distinct environmental and climatic conditions, geographic origins, and plant populations [49,50]. Hexa-hydro-farnesol 1536 0.28…”