Abstract
Pectin and arabinogalactan (AG) were isolated from Tanacetum vulgare callus and native tissues. The main chain of the callus pectin macromolecule consisted of a linear galacturonan that made up over half of the whole carbohydrate chain and a branched region that was RG-I. Callus pectin was characterized by a higher molecular mass and lower degree of methyl esterification than pectin from the native plant. Callus AG differed from AG of the native plant by a higher galactose content. The strength and elasticity of hydrogels of callus culture pectins were greater than those of native plant pectins.
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