Chemical composition of the essential oils from fruits, leaves and flowers of the Amur cork tree ( Phellodendron amurense Rupr.)

The essential oils from fruits, leaves and flowers of the Amur cork tree ( Phellodendron amurense Rupr.) were analysed by GC, GC–MS and 1 H‐NMR spectroscopy. About 80 compounds were identified in each oil. Myrcene (62.3–70.3%) and β ‐caryophyllene (6.8–10.5%) dominated in the oils from unripe and ripe fruits. The leaf oil contained β ‐elemol (18.5%) and ( Z )‐ β ‐ocimene (12.6%) as the main constituents, whereas in the flower oil these were ( Z )‐ β ‐ocimene (9.5%), β ‐elemol (9.4%), myrcene (7.8%) and nonacosane (7.7%).