Composition of Essential Oils of Flowers, Leaves, Stems and Rhizome ofPeucedanum officinaleL. (Apiaceae)

The results of the chemical investigations of the essential oils from the flowers, leaves, stems and rhizome of Peucedanum officinale are presented. The essential oil contents were 1.21% (v/w) in flowers, 0.64% (v/w) in leaves, 0.08% (v/w) in stems and 0.24% (v/w) in rhizome. By GC and GC/MS analysis, in all four oils the total of 132 compounds was identified: 53 constituents (93.4% of total amount) in the oil obtained from the flowers, 70 (94.3% of total amount) in the oil from the leaves, 78 (87.8% of total amount) in the oil from the stems and 67 (95.9% of total amount) in the oil from rhizome. In all oils investigated, monoterpenes were the dominant class of constituents (73.9–83.7%), with hydrocarbons (65.6–81.6%) as the most abundant representatives. Limonene, α-pinene and sabinene were identified as the most important constituents in common for all four oils. In the oil from the flowers, leaves and stems, β-pinene and myrcene were also abundant. However, the flower oil differed from the others by a significant quantity of α-phellandrene.