Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10597030 | Carbohydrate Polymers | 2013 | 7 Pages |
Abstract
The coral-associated fungus Penicillium commune produces an extracellular polysaccharide, FP2-1, when grown in potato dextrose-agar medium. FP2-1 was isolated from the fermented broth using anion-exchange and size-exclusion chromatography, and its structure was elucidated by chemical and spectroscopic analyses, including detailed nuclear magnetic resonance spectroscopy. The results showed that FP2-1 was a glucomannogalactan with a molar ratio of galactose, mannose and glucose of 3.9:1.9:1.0. Structure of FP2-1 may be represented, at an average, as a backbone of (1â2)-linked α-mannopyranose with the every second residue substituted at position 6 by a pentasaccharide branch. The branches consist of four (1â6)-linked β-galactofuranose residues with terminal α-glucopyranose residue attached to the last galactofuranose residue at position 2. FP2-1 was a novel galactofuranose-containing extracellular polysaccharide differing from previously described extracellular polysaccharides.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Yanli Chen, Wenjun Mao, Junfeng Wang, Weiming Zhu, Chunqi Zhao, Na Li, Chunyan Wang, Mengxia Yan, Tao Guo, Xue Liu,