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Structural studies of the extracellular polysaccharide elaborated by Azotobacter vinelandii strain 1484

✍ Scribed by Fernando Ferreira; Lennart Kenne; Bengt Lindberg; Wolfgang Nimmich

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
474 KB
Volume
210
Category
Article
ISSN
0008-6215

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✦ Synopsis

The structure of the extracellular polysaccharide from Azotobacter vinelandii strain 1484 has been investigated, specific degradations and n.m.r. spectroscopy being the main methods used. It is concluded that the polysaccharide is composed of tetrasaccharide repeating-units having the following structure, [sequence: see text] in which Sug is 3-deoxy-D-threo-hexulosonic acid. The polysaccharide also contains a non-stoichiometric amount of O-acetyl groups, distributed over at least two positions.

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