Abstract
The compositions of essential oils found in Artemisia frigida Willd. growing within the Republic of Buryatia (Russia), Mongolia, and China are analyzed in this work. We identified 152 compounds in the essential oils of A. frigida, including acyclic, aromatic, mono-, sesqui- and diterpene compounds. The dominant compounds found in plants from the Republic of Buryatia were mostly monoterpenes, including 1,8-cineol, camphor, borneol and terpinen-4-ol. The samples from the Chita region of Russia and from Mongolia, which was drier than the Republic of Buryatia, contained a similar composition of major compounds as well as sesquiterpenes (e.g. caryophyllene, germacrene D) in addition to the above-mentioned monoterpenes. The samples from Qinghai Province, China, contained α-bisabolone oxide A, B, camphor, and 1,8-cineol as dominant compounds. There were some irregular monoterpenes (e.g., yomogi alcohol, artemisia ketone, artemisia alcohol, and lavandulol) in the Chinese samples. Eastern A. frigida populations were characterized by a high proportion of sesquiterpene compounds, while high-elevation mountain plants contain high concentrations of spathulenol and germacrene D.
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