Component compoition of the aerial parts <i>Centaurea</i> (Asteraceae) species from Siberia and Central Asia

Abstract

The component composition of 6 species of the genus Centaurea L. s.l. (C. gontscharovii Iljin, C. modesti Fed., C. phyllopoda Iljin, C. ruthenica Lam., C. scabiosa L., C. sibirica L.) growing in Siberia and Central Asia was studied. For the species C. modesti, C. phyllopoda, C. gontscharovii, the component composition was determined for the first time. Using high performance liquid chromatography (HPLC), 24 phenolic compounds were identified in the aerial parts of the studied species, of which 15 are flavonoids, and 9 are phenolic acids. Ethyl gallate was identified in all studied species. For Central Asian species, except for C. gontscharovii, the presence of avicularin, baicalin, and apigenin is characteristic. Gallic acid was identified in all species except C. sibirica. Chlorogenic acid was characteristic of all species except C. modesti. Syringin, salipurposide, avicularin, baicalin, and apigenin were found in C. ruthenica and C. phyllopoda. Dihydromyricitin was identified in C. ruthenica from Kazachstan only, eriodictyol and ellagic acid were identified in C. scabiosa, and fumaric and salicylic acids were identified in C. phyllopoda. In the studied species, the content of phenolic compounds in terms of dry raw materials was 0.6–6.7%.