Artemisia jacutica Drob. as the source of terpenoids

The object of research is Artemisia jacutica Drob. from Absinthium section, Asteracea family. The aerial part of A. jacutica was collected in Buryatia in 2017-2018. In this research we identified three types of terpenoid-containing structures: nonspecialized parenchyma cells with the inclusion of essential oils' droplets, schizogenous intercellular space and essential oil glands. Also, we isolated the essential oil from the aerial part, and identified its component composition using GC-MS method. The dominant components were γ-eudesmol, chamazulene, neryl-3-methylbutanoate, neryl-isobutanoate and geranyl-3-methylbutanoate. Using IR-spectroscopy we made the screening of the sum of extractives for the presence of γ-lactones in water, ethanol and chloroform extracts. Then, the quantitative content of the total sum of sesquiterpene lactones from samples collected in 2017 and 2018 was 1.13±0.04 % and 1.05±0.07 %, respectively. More than that, we identified arglabin in CO₂- and chloroform (1:10) extracts using HPLC-UV method. The extract yield was 0.79% and 2.39%, respectively. The yield of arglabin in these extracts was 0.001% and 1.15%, respectively. (paper)