Structural elucidation of an extracellular polysaccharide produced by the marine fungus Aspergillus versicolor.
Carbohydr Polym
; 93(2): 478-83, 2013 Apr 02.
Article
en En
| MEDLINE
| ID: mdl-23499086
ABSTRACT
A homogenous extracellular polysaccharide, designated AWP, was isolated from the fermented liquid of the marine fungus Aspergillus versicolor from the coral Cladiella sp. and purified by anion-exchange and size-exclusion chromatography (SEC). Chemical and spectroscopic analyses, including one- and two-dimensional nuclear magnetic resonance (1D and 2D NMR) spectroscopy showed that AWP consisted of glucose and mannose in a molar ratio of 8.61.0, and its average molecular weight was estimated to be 500kDa. AWP is a slightly branched extracellular polysaccharide. The backbone of AWP is mainly composed of (1â6)-linked α-D-glucopyranose residues, slightly branched by single α-d-mannopyranose units attached to the main chain at C-3 positions of the glucan backbone. The investigation demonstrated that AWP is a novel extracellular polysaccharide different from those of other marine microorganisms.
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1
Banco de datos:
MEDLINE
Asunto principal:
Aspergillus
/
Micelio
/
Polisacáridos Fúngicos
Límite:
Animals
Idioma:
En
Revista:
Carbohydr Polym
Año:
2013
Tipo del documento:
Article