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1. (Article ID: 7896)
 
Choma A, Wiater A, Komaniecka I, Paduch R, Pleszczyńska M, Szczodrak J
Chemical characterization of a water insoluble (1→3)-a-D-glucan from an alkaline extract of Aspergillus wentii
Carbohydrate Polymers 91(2) (2013) 603-308
 

The chemical structure of a water insoluble α-glucan isolated from the cell wall of Aspergillus wentii was described on the basis of total acid hydrolysis, methylation analysis, and 1D and 2D NMR studies (TOCSY, DQF-COSY, NOESY and HSQC) as well as other instrumental techniques. It was established that the analyzed preparation contained a linear polymer composed almost exclusively of (1→3)-linked α-D-glucose, with a molecular mass of about 850kDa. The polymer was divided into subunits separated by a short spacers of (1→4)-linked α-D-glucoses. Each subunit contained about 200 glucose residues.

NMR, FT-IR, (1-3)-α-D-Glucan, water-insoluble polysaccharide, Aspergillus wentii

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