Taxonomic group: fungi / Ascomycota
(Phylum: Ascomycota)
Associated disease: infection due to Aspergillus [ICD11:
XN0WC 
]
The structure was elucidated in this paperNCBI PubMed ID: 21733681Publication DOI: 10.1016/j.biortech.2011.06.048Journal NLM ID: 9889523Publisher: Elsevier
Correspondence: wenjunmqd
hotmail.com
Institutions: Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drug and Food, Ocean University of China, Qingdao, China, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, Ocean University of China, Qingdao, China
A homogeneous exopolysaccharide, designated As1-1, was obtained from the culture medium of the mangrove endophytic fungus Aspergillus sp. Y16 and purified by anion-exchange and gel-permeation chromatography. Results of chemical and spectroscopic analyses, including one- and two-dimensional nuclear magnetic resonance (1D and 2D NMR) spectroscopy showed that As1-1 was mainly composed of mannose with small amounts of galactose, and that its molecular weight was about 15 kDa. The backbone of As1-1 mainly consists of (1→2)-linked α-d-mannopyranose units, substituted at C-6 by the (1→6)-linked α-d-mannopyranose, (1→)-linked β-D-galactofuranose and (1→)-linked β-D-mannopyranose units. As1-1 possessed good in vitro antioxidant activity as evaluated by scavenging assays involving 1,1-diphenyl-2-picrylhydrazyl (DPPH) and superoxide radicals. The investigation demonstrated that As1-1 is an exopolysaccharide different from those of other marine microorganisms, and could be a potential antioxidant and food supplement.
structure, exopolysaccharide, antioxidant property, Aspergillus sp. Y16, mangrove endophytic fungus
Structure type: polymer chemical repeating unit
Location inside paper: As2-1, pp.8181-8182
Compound class: EPS
Contained glycoepitopes: IEDB_130701,IEDB_137485,IEDB_140116,IEDB_141793,IEDB_141828,IEDB_144983,IEDB_152206,IEDB_153220,IEDB_153762,IEDB_153763,IEDB_76920,IEDB_76933,IEDB_983930,SB_198,SB_44,SB_67,SB_72
Methods: 13C NMR, 1H NMR, NMR-2D, acid hydrolysis, GC, FTIR, NMR-1D, HPLC, extraction, methylation analysis, CC, radical scavenging assay, phenol-sulfuric acid method
Comments, role: main chain; supplementary data can be found in the online version at doi:10.1016/j.biortech.2011.06.048
Related record ID(s): 43359
NCBI Taxonomy refs (TaxIDs): 5052Reference(s) to other database(s): GTC:G68228CO
Show glycosyltransferases
There is only one chemically distinct structure:
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