IDENTIFICATION OF THE VOLATILE COMPONENTS IN THE LEAVES AND WOOD OF CUNNINHAMIA-LANCEOLATA

Essential oil of the wood and leaves of Cunninghamia lanceolata was obtained from the chips by steam distillation. Following the further separation, 5 fractions of wood essential oil were obtained by column chromatography. Each fraction was then conduted in GC and GC-MS for identification of the components. Results indicate that cedrol was the major component accounting for 60.5% of the total essential oil. The other minor 39 compounds including alpha-cedrene, terpinyl acetate, etc were also presented. Among these, the 28 compounds including terpinyl acetate, and terpinolene etc were reported for the first time in the wood essential oil of C. lanceolata. In the essential oil of C. lanceolata leaves, alpha-limonene acconuting for 27.3% was the major component. There are other 19 components including alpha-pinene, and beta-pinene etc were also identified.