Studies on Chemical Composition of Essential Oils from Leaf and Inflorescence ofHedychium larseniiM.Dan & Sathish

Essential oils obtained by hydrodistillation of leaf and inflorescence of Hedychium larsenii were analyzed by capillary gas chromatography. Thirty-three constituents comprising 81.47% of the yellow colored leaf oil were identified. The major constituents of the leaf oil were ar-curcumene (24.75%), caryophyllene oxide (7.85%), bisabol-11-ol (4.50%) and spathulenol (4.33%). Analysis of the colorless inflorescence oil showed thirty-eight constituents amounting to 96.24% of the oil. Higher amounts of monoterpene hydrocarbons with ρ-cymene (18.57%) and γ-terpinene (10.51%) as major constituents were detected in the inflorescence oil.