Structure of acid-extractable polysaccharides of tree greenery of Picea abies

The polysaccharide PAA was isolated from tree greenery of spruce Picea abies by the extraction with HCl solution. Monosaccharide analysis PAA revealed high content of uronic acid residues (45%), arabinose (19.5%) and galactose (8.6%). It was shown that this polysaccharide contained polymers of various structures. The major component of which were pectic polysaccharides represented mainly by partly methyl-esterified and partly acetylated...