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Structural studies of the glucuronic acid oligomers produced byGluconacetobacter hanseniistrain

Authors
Journal
Carbohydrate Polymers
0144-8617
Publisher
Elsevier
Publication Date
Volume
63
Issue
4
Identifiers
DOI: 10.1016/j.carbpol.2005.10.004
Keywords
  • Gluconacetobacter Hanseniipjk
  • Water-Soluble Polysaccharides
  • Glucuronic Acid
  • Spectroscopic Techniques

Abstract

Abstract Gluconacetobacter hansenii PJK, a cellulose producing bacterium recently isolated from the rotten apples, produced fair amounts of the water-soluble polysaccharides (WSPS). WSPS were studied for their monosaccharides composition after acid hydrolysis, which revealed that the hydrolysates consist only of one sugar, glucuronic acid. The structure of the WSPS was investigated using various spectroscopic techniques including FT-IR, MALDI-TOF MS and 1H, and 13C NMR. These studies revealed that the product is a mixture of oligomers with the α-glucuronic acid as building blocks. The possible structure of the major oligosaccharide in the mixture has been deduced.

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