GC and GC-–MS Analysis of Volatile Compounds From Ballota nigra subsp. uncinata Collected in Aeolian Islands, Sicily (Southern Italy)

In the present study, the chemical composition of the essential oils from aerial parts of Ballota nigra subsp. uncinata (Beg.) Patzak collected in Sicily was evaluated by gas chromatography (GC) and GC-mass spectrometry. The main components of the oil were (E)-phytol (20.0%), alpha-pinene (9.0%), hexahydrofarnesyl acetone (5.7%), and alpha-selinene (5.1%). Cluster analysis of the essential oil compositions of all the taxa belonging to B. nigra s.l. group was performed