The composition of Thymus serpyllum L. oil

The essential oils isolated by steam distillation from the aertial parts of Thymus serpyllum, before flowering and at full flowering stage were analyzed by capillary GC and GC/MS. Among the 34 compounds identified, the major components were gamma-terpinene (21.9% and 22.7%), p-cymene (21.1% and 20.7%), thymol (18.7% and 18.7%) and germacrene D (6.0% and 5.1%) before flowering and at full flowering stage, respectively.