Essential oil composition of leaf,flower and stem of Styrax (Styrax officinalis L) from south-eastern France

摘要

The essential oil composition of Styrax officinalis L.was investigated by GC and GC-MS for the first time.Oil yields were low,whichever organ was hydrodistilled.Leaf,stem and flower oils consisted of 42.2%,41.2% and 48.7% of terpenoids,respectively.Among all the identified terpenoids,oxygenated monoterpenes were predominant in all the plant organs.The major compounds in the leaf essential oils were (E)-2-hexenal (17.6%),linalool (11.9%) and geranial (5.5%).Linalool was the major compound (26.4%) in the volatile flower oil,followed by tridecanal (9.8%) and dodecane (9.6%),while alpha-terpineol (17%) and eugenol (9.9%) were the main compounds in the stem essential oil.