Аннотация
One of the renewable sources of plant material is the plants of the Onagraceae L. family, growing on the territory of the Republic of Kazakhstan. The plant Circaea lutetiana L., (bipartite of Paris) of the genus Circaea L., (bipartite) of the family Onagraceae L., (fireweed), which belongs to medicinal, dyeing and food plants, was taken as an object of study. The presence of polyphenolic compounds was detected by paper chromatography in an ascending manner in solvent systems: butanol-acetic acid-water (BAW) (41:5), (40:12.5:29), 2%, 15% acetic acid with specific developers: diazotized sulfanilic acid (DZSA), diazotized para-nitroaniline (DZPNA), ammonia vapors, aluminum chloride (AlCl3), ferric chloride (FeCl3), ammonium-iron alum (AIA), vanillin reagent in sulfuric acid. The content of gallic and ferulic acids was determined in the roots and fruits of the plant, and ellagic acid in the leaves and fruits. Flavonoids and tannins of the hydrolyzable type were found in all plant organs, the largest number of them in fruits and the smallest in roots. Using the method of spectrophotometry in all plant organs, the content of flavonoids in terms of State standard sample (SSS) quercetin was determined (roots 0.96%, stems 2.03%, leaves 2.74%, fruits 3.67%), the content of tannins in terms of tannin (roots 0.005%, stems 1.19%, leaves 3.69%, fruits 5.99%).