The investigations of the chemical composition of <i>Amaranthus retroflexus L.</i>
The article describes the results of the investigations of the quality composition and quantity content of some classes of biologically active substances contained in the herb of <i>Amaranthus retroflexus L.</i> The classical methods allowed determining the presence of carbohydrates, organic acids, tannins, flavonoids in the herb of<i> Amaranthus retroflexus L. </i>The number of organic acids, including amino acids, monosaccharides and disaccharides, were identified by the method of thin-layer chromatography with the significant samples. The study of phenol composition of the herb of <i>Amaranthus retroflexus L.</i> by the method of HPLC allowed determining the presence of 15 substances of phenol origin as a minimum. For the first time the total content of organic acids including amino acids and ascorbic acid, water-soluble polysaccharides complex, pectins, tannins, flavonoids was determined.