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Mushrooms have been largely studied not only by their d-glucans, but also because they present a class of more complex polymers: the heteropolysaccharides. Heteropolysaccharides show variability on their monosaccharide composition, anomeric configuration, linkage and branching type, besides some of these molecules can present natural methylated monosaccharides and also acid monosaccharides, which...
Two polysaccharides were isolated from the basidiomycete Flammulina velutipes, via successive hot extraction with water, 2% and 25% aq. KOH, and then submitted to freeze-drying. The precipitate formed by repeated freeze-thawing from the 2% aq. KOH extraction PK2 was analyzed by determination of its monosaccharide composition, as well as by methylation analyses using GC–MS, mono- ( 13 C, ...
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