QUANTITATIVE CONTENT OF THE MAIN ACTIVE SUBSTANCES IN THE ROOTS OF THE NATURAL AND IN-TRODUCED PLANT SAPOSHNIKOVIA DIVARICATE (TURCZ.) SCHISCHK.

Abstract

A HPLC-UV method was developed for the quantitative analysis of chromones in the roots of Saposhnikovia divaricata (Turcz.) Schischk. The optimal parameters of chromones extraction (two-fold ultrasonic extraction with a duration of 40 min with 50% ethyl alcohol at a raw material-extractant ratio of 1:10) were selected. The validation analysis showed that the proposed method is characterized by satisfactory metrological parameters. The method was used for the analysis of raw materials of wild, introduced and commercial samples of S. divaricata. In this work, for the first time in the roots of S. divaricata from natural populations of Buryatia, Trans-Baikal Territory, Mongolia and in the introduced samples, the HPLC-UV method was used to determine the quantitative content of the main active substances: prim-O-glucosylcimifugine (0.13–5.22 mg/g), cimifugine (0.01– 1.82 mg/g) and 4’-O-β-D-glucosyl-5-O-methylvisamminol (0.98–3.25 mg/g). The total content of chromones varies depending on the place of collection and the phase of vegetation. The content of chromones in two samples of roots from introduced S. divaricatae, collected in the first year of introduction in different climatic conditions, was established.