Composition of essential oil of the leaf and inflorescence o | 16220
International Research Journals

International Research Journal of Plant Science

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Composition of essential oil of the leaf and inflorescence of Pogostemon benghalensis (Burm.f.) Kuntze


Md. Nazrul Islam Bhuiyan, V. K. Varshney, Shiam C. Varshney, Arvind Tomar, Farhana Akter

Essential oil compositions of the leaf and inflorescences of Pogostemon benghalensis (Burm.f.) Kuntze were investigated by gas chromatography–mass spectrometry (GC-MS). P. benghalensis oils were found to contain few monoterpene hydrocarbons, a moderate content of sesquiterpenes and high content of aliphatic hydrocarbons. The inflorescences oil are rich in transcaryophyllene (8.52%), germacrene B (4.50%), δ-cadiuene (4.37%), β-ocimene (4.30%), χ-elemene (3.54%), caryophyllene oxide (3.27%), curzerene (1.70%), α-humulene (1.68%), α-guaiene (1.54%) and germacrene (1.28%), whereas leaf oil is rich in cadinene isomer (2.615%), elemol (1.458%), α bulnesene (2.184%), χ-elemene (2.118%) and germacrene D (1.190%). The compositions of both oils varied qualitatively and quantitatively.

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