COMPARATIVE ANALYSIS OF THE CONTENT OF BIOLOGICALLY ACTIVE SUBSTANCES OF CALENDULA OFFICINALIS L., GROWING ON THE TERRITORY OF THE ORENBURG REGION

Abstract

Purpose. Comparative analysis of the content of biologically active substances of the flowers of Calendula officinalis L. growing in the Orenburg region.Material and methods. The quantitative content of biologically active substances (BAS) was assessed by the spectrophotometric method, by the method of acid-base titration and by the method of redox titration.Results. Comparative analysis of biologically active substances revealed the maximum content of the sum of flavonoids(1,61±0,16%) and ascorbic acid (1,18±0,05%) in the flowers of Calendula officinalis L. growing in the Asekeevsky district, the sum of organic acids (3,0±0,16%) - in the flowers of Calendula officinalis L. growing of Novosergievsky district, tannins (4,47±0,39%) - in the flowers of Calendula officinalis L. growing in Sharlyksky district.Conclusions. These results significantly exceed the content of biologically active substances in official raw materials, which makes it possible to consider the flowers of Cаlendula оfficinаlis L. growing in different areas of the Orenburg region as a potential source of flavonoids, tannins, organic acids, including ascorbic acid, and the studied areas can be considered as new territories for plant cultivation.