Abstract
The composition and yield of essential oils obtained by steam distillation in Ginzberg's apparatus from air-dry materials collected in blooming phase from herbs (above-ground part) ofDracocephalum moldavica L. (DM), an aromatic-oil plant grown in Stavropol region, were studied. The yield of essential oil reached 0.10 - 0.43%. Chromatographic analysis of essential oil was performed on a Tsvet-500 gas chromatograph equipped with a flame ionization detection (FID) and a 3 mm (i.d.) × 240 cm glass column filled with 10% Reoplex 400 on Inerton Super, temperature programmed as follows: 80°C (5 min); heating at 3°C/min to 190°C; 190°C (10 min); FID temperature, 220°C. The essential oil derived from DM herbs was found to contain from 24 to 36 components. The major fraction in the oil was citral. Based on these chromatographic data, it was concluded that the main components ( 35%) of the DM essential oil are @[alpha]-terpineol, linalool, limonene and acycliuc monoterpenoids including geranyl acetate, nerol, geraniol, and linalyl acetate.
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