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Chemical constituents of essential oils of Himalayan Nepeta ciliaris Benth. and Senecio nudicaulis Buch-Ham. Ex D. Don
- Kumar, Vinod, Mathela, C. S.
- TheJournal of essential oil research 2018 v.30 no.3 pp. 207-213
- Nepeta, Senecio, acetates, beta-caryophyllene, chemical composition, essential oils, gas chromatography-mass spectrometry, germacrene, linoleic acid, oils
- In the present work, essential oils are isolated from Nepeta ciliaris Benth. and Senecio nudicaulis Buch-Ham. Ex D. Don collected from the different regions of Uttarakhand were analysed using GC-FID and GC-MS. Over two dozen constituents, representing ≈85.0% of the total oil composition, were identified in N. ciliaris. The N. ciliaris (Nainital) oil was marked by presence of sesquiterpene hydrocarbons and iridodial derivatives (iridodial-β-monoenol acetate and dihydroiridodial-β-enol diacetate) as compared to trace/small concentration of iridodial in the oil of N. ciliaris (Dronagiri). Germacrene D (3.4–46.0%), β-caryophyllene (13.9–34.7%) and α-humulene (10–30.2%) were principal constituents in the four oils of S. nudicaulis. Linoleic acid and tridecene were two important constituents of S. nudicaulis.