Essential oil composition of Valeriana officinalis ssp collina cultivated in Bulgaria

The essential oils obtained from air-dried subterranean parts of Valeriana officinalis ssp. collina (Wallr.) Nyman (Valerianaceae), 'Shipka,' was anal yzed by GC and GC/MS, and 62 components were identified. The oil yield, col lected in plants grown in 1995 and 1938, was 0.42% (v/m) and 0.40% (v/m) re spectively, related to the air-dried roots. Two new sesquiterpenes, (-)-pac ifigorgia-1(6),10-diene and (-)-valerena-4,7(11)-diene were identified for the first rime in both oils. Some major constituents were bornyl acetate (6 .0%-7.3%), spathulenol (5.2%-4.1%), valeranone (12.0%-6.8%), valerenal (9.1 %-8.5%), alpha-kessyl acetate (2.1%-6.2%) and (-)-vaierena-4,7(11)-diene (7 .2%-4.6%).