Literature DB >> 12039544

An acetylated galactoglucomannan from Picea abies L. Karst.

Peter Capek1, Juraj Alföldi, Desana Lisková.   

Abstract

A water-soluble galactoglucomannan composed of D-galactose, D-glucose, and D-mannose in 1:3:17 mole proportion has been isolated from the secondary cell walls of Picea abies L. Karst. About 33% of the polysaccharide units were substituted by acetyl groups. Structural studies of the polymer indicated a beta-(1-->4)-linked glucomannopyranosyl backbone with a low content of branch points at O-6 of mannosyl and glucosyl residues. A preference for mannosyl groups indicates the presence of a single D-galactosyl unit side-chain. About half of the mannose residues were O-acetylated at C-2 and C-3 in 1.7:1 mole proportion.

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Year:  2002        PMID： 12039544     DOI： 10.1016/s0008-6215(02)00090-3

Source DB:  PubMed          Journal:  Carbohydr Res        ISSN： 0008-6215            Impact factor:   2.104


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