Chemical composition of leaf oils of Myristica beddomeii (King), Myristica fragrans (Houtt.) and Myristica malabarica (Lamk.)

摘要

Essential oil constituents of leaves of three Myristica species namely, Myristica beddomeii, M. fragrans and M. malabarica were determined by gas chromatography and gas chromatography-mass spectrometry. M. fragrans was dominated by monoterpenes (91%),M. beddomeii contained mono-(48%) and sesquiterpenes(35%) whereas M. malabarica was dominated by sesquiterpenes (73%). The leaf oil of M. beddomeii was dominated by alpha-pinene (19.59%), t-caryophyllene (14.63%) and beta-pinene (12.46%). The leaf oil of M. fragrans contained sabinene (19.07%), alpha-pinene (18.04%), t-terpineol (11.83%), limonene (8.32%) and beta-pinene (7.92%) as major compounds, while t-caryophyllene (20.15%), alpha-humulene (10.17%), nerolidol (9.25%) and delta-cadinene (6.72%) were predominant in the oil of M. malabarica. Linalool, alpha-terpineol, t-caryophyllene, beta-elemene and gamma-elemene were present in all the three species. This is the first report on the essential oil composition of M. beddomeii leaves.