Study of galactoglucomannans from the seed of <Emphasis Type="Italic">Cercis canadensis</Emphasis> L. |
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Authors: | N M Mestechkina A V Egorov O V Anulov V D Shcherbukhin |
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Institution: | (1) Bach Institute of Biochemistry, Russian Academy of Sciences, Leninskii pr. 33, Moscow, 119071, Russia |
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Abstract: | Galactoglucomannans were isolated by selective precipitation from aqueous and alkaline extracts of endosperm and hulls of Cercis canadensis, a member of the family Fabaceae. Their monosaccharide composition (Man : Gal : Glu) was as follows: 10.4 : 0.9 : 1 (polysaccharide from the endosperm) and 4.5 : 0.9 : 1 (polysaccharide from the hulls). The identity of IR spectra was indicative of the similarity of their structure. Analysis of the structure of the galactoglucomannan from endosperm by 13C NMR spectroscopy showed that its main chain consisted of 1,4- -D-manno- and 1,4- -D-glucopyranose. Part of the mannose residues in the chain were substituted at C6 with single residues of -D-galactopyranose. Galactoglucomannans are located in different parts of the seed and implement different functions.__________Translated from Prikladnaya Biokhimiya i Mikrobiologiya, Vol. 41, No. 3, 2005, pp. 324–329.Original Russian Text Copyright © 2005 by Mestechkina, Egorov, Anulov, Shcherbukhin. |
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