СТРУКТУРНО-ХИМИЧЕСКАЯ ХАРАКТЕРИСТИКА И БИОЛОГИЧЕСКАЯ АКТИВНОСТЬ ПОЛИСАХАРИДОВ HERACLEUM SOSNOWSKYI MANDEN

Abstract

Was studied character of the changes yield and the monosaccharide composition the arabinogalactan proteins (AGP), pectic polysaccharides and of cross-linking glycans , were isolated from the aboveground part of Heracleum sosnowskyi Manden the sequential treatment with water, HCl solution, and (NH 4 ) 2 C 2 O 4 , KOH and NaOH solution. The fractions were isolated extraction with water consist mainly of AGP and minor amounts of pectic polysaccharides. The fractions were isolated extraction with aqueous HCl solution are a mixture of AGP and pectic polysaccharides, the latter prevailing. The fractions were isolated extraction with aqueous (NH 4 ) 2 C 2 O 4 are characterized by the predominance of pectic polysaccharides and a minor amount of AGP. When studying the monosaccharide composition of the fractions extracted KOH solution determined that the main components of their carbohydrate chains are residues of xylose, glucose and uronic acids that probably specifies the affiliations these fractions of cross-linking glycans class glucuronoarabinoxylans and xyloglucans. The major components of the carbon chain fractions extracted aqueous solution of NaOH, are of mannose and glucose residues, which probably specifies the affiliations these fractions of cross-linking glycans class glucomannan. The last two fractions also contained some amount of pectin polysaccharides. It is shown high biological activity pectic polysaccharides, from the aboveground part of Heracleum sosnowskyi Manden, extraction (NH 4 ) 2 C 2 O 4 solution on germination and growth rate of seeds, germs and roots of Triticum aestivum L.