Volatile Constituents of Ridolfia segetum (L.) Moris Gathered in Central Spain: Castilla la Mancha Province

Abstract

The oils isolated from the aerial parts of Ridolfia segetum (L.) Moris (Apiaceae) gathered in Castilla la Mancha (Spain) were analyzed by capillary GC and GC/MS. The oil from the flowers was dominated by α-phellandrene (32.0–33.8%), terpinolene (18.0–21.4%) and (Z)-β-ocimene (12.4–14.5%), while the main components of the fruit oils were found to be dillapiole (5.1–39.6%), β-pinene (10.3–20.9%), α-pinene (3.0–16.1%), α-phellandrene (13.7–15.3%) and (Z)-β-ocimene (8.1–12.8%). The oil from the stems was characterized by a high content of p-cymene (15.1–79.5%), (Z)-β-ocimene(0.9–38.5%) and α-phellandrene (1.1–14.4%), whereas the oil from the leaves was shown to contain p-cymene (8.8–83.6%), (Z)-β-ocimene (t-32.6%), myrcene (t-12.5%) and β-pinene (2.1–12.1%) as major constituents.

Key Word Index:

• Ridolfia segetum
• Apiaceae
• essential oil composition
• α-pinene
• β-pinene
• myrcene
• α-phellandrene
• p-cymene
• (Z)-β-ocimene
• terpinolene
• dillapiole