PHENOLIC COMPOUNDS SANGUISORBA OFFICINALIS (ROSACEAE) GROWING IN EASTERN SIBERIA

The present work aimed at the study of the phenolic compounds of Sanguisorba officinalis L. (Rosaceae) growing in Eastern Siberia. The quantitative content of flavonoids in S. officinalis extracts determined by the spectrophotometric method was 0.68–5.41% in herb and 0.20–0.51% in rhizomes and roots. Catechin content was 0.05–0.75% in herb and 0.08–9.86% in rhizomes and roots, and procyanidin content found with spectrophotometric Porter method was 0.02–1.45% in herb and 0.08–1.05% in rhizomes and roots. Regression analysis of the relationships “latitude / longitude / altitude – phenolic compounds content” showed the high values of the correlation coefficient for the catechin content in herb and roots of S. officinalis and the longitude of the place of growth, as well as altitude. The content of flavonoids in the herb and roots of S. officinalis was connected with the longitude and latitude of the collection place. The values of procyanidin content in S. officinalis organs and geographic indicators have fewer relationships. Using the HPLC-DAD-ESI-MS method, chromatographic profiles of the herb and rhizomes and roots of S. officinalis was investigated. The data of chromatographic mobility, UV and mass spectra allowed estimating 52 compounds, including 45 in herb and 31 in rhizomes and roots. The members of seven groups of phenolic compounds have been found in S. officinalis, including gallotannins, flavonol-O-glycosides, procyanidins, ellagotannins, hydroxycinnamates, catechins, and pyrones, of which 12 are previously described for the species and the presence of 40 components, has been shown for the first time in the species.