Abstract
An essential oil was extracted from the above-ground part of breeding specimens of the Moldavian dragon’s head. The quantitative composition of the essential oil (0.10–0.43%) was studied and the dynamics of its accumulation in different plant organs were determined on introduction into the Stavropol region. The conditions for quantitative estimation of the essential oil content by distillation were optimized. Variability of the mass proportion in plant organs and in the quantitative ratios in samples of raw material during the mass flowering period was studied. The resulting experimental data provide grounds for the correct selection of the optimum height at which to cut plants on harvesting. The stock material (herb) should contain inflorescences, leaves, and no more than 30% stems, as these have the lowest essential oil content. The optimal height for cutting plants is 35–40 cm. Analysis of the essential oil by gas-liquid chromatography showed that it contained up to 36 components, the dominant of which was citral. Terpineol, linalool, limonene, acyclic monoterpenoids (geranyl acetate, nerol, linalyl acetate, geranyl acetate, and geraniol) were present in significant quantities in samples of the essential oil, amounting to about 35%.
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