Chemodiversity of Arctic Plant Dryas oxyodonta : LC-MS Profile and Antioxidant Activity

Yuz. is a perennial evergreen shrub from the Rosaceae family. thrives in subalpine and subarctic regions, as well as in highlands spanning from Central Asia to Siberia and Mongolia. Owing to a lack of information on its chemical composition, we conducted qualitative and quantitative chromatographic analyses on extracts from the leaves and flowers of sourced from various Siberian habitats. Employing high-performance liquid chromatography with photodiode-array detection and electrospray ionization triple-quadrupole mass spectrometric detection, we identified 40 compounds, encompassing gallotannins, hydroxycinnamates, procyanidins, catechins, flavonoids, and triterpenes. All Siberian populations of exhibited a notable abundance of phenolic compounds. Furthermore, we identified rare glycosides, such as sexangularetin and corniculatusin, as potential markers of the chemodiversity within the genus. Extracts from the flowers and leaves were effective scavengers of free radicals, including DPPH , ABTS , O , and OH radicals. Our findings unequivocally establish as a rich source of phenolic compounds with potent antioxidant activity, suggesting its potential utility in developing novel functional products.