Composition and Anti-Wood-Decay Fungal Activities of the Leaf Essential oil of Machilus philippinensis from Taiwan

The hydrodistillated leaf essential oil of Machilus philippinensis was analyzed to determine its composition and yield. Seventy compounds were identified, the main components being β-caryophyllene (13.6%), α-pinene (12.0%), α-cadinol (7.4%), cis-ocimene (7.0%), spathulenol (5.6%), (E)-nerolidol (5.3%), tau-cadinol (4.8%) and β-pinene (4.5%). Monoterpene hydrocarbons (36.1%) and oxygenated sesquiterpenes (33.0%) were the predominant groups of compounds. The leaf oil exhibited excellent anti-wood-decay fungal activities.