title: Chemical characterization of a water insoluble (1→3)-α-D-glucan from an alkaline extract of Aspergillus wentii.
abstract: 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.
authors.affiliation: Department of Genetics and Microbiology, Institute of Microbiology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland. adam.choma@poczta.umcs.lublin.pl
authors.forename: Adam
authors.initials: A
authors.lastname: Choma
authors.forename: Adrian
authors.initials: A
authors.lastname: Wiater
authors.forename: Iwona
authors.initials: I
authors.lastname: Komaniecka
authors.forename: Roman
authors.initials: R
authors.lastname: Paduch
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Pleszczyńska
authors.forename: Janusz
authors.initials: J
authors.lastname: Szczodrak
mesh_terms: D001230:Aspergillus / Q000737:chemistry*; D002240:Carbohydrate Sequence; D002473:Cell Wall / Q000737:chemistry; D005936:Glucans / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D012995:Solubility; D014867:Water
chemical_list: D005936:Glucans; D014867:Water