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A water-soluble heteropolysaccharide DNP-W3 with a molecular mass of 710kDa was obtained from the stems of Dendrobium nobile Lindl, a well-known edible and medicinal plant in Southeast Asia. It had [α]D20 +19.6° (c 0.5, H 2 O) and contained galactose, rhamnose and arabinose in a molar ratio of 3.1:1.1:1.0. Structural features of the purified polysaccharide were elucidated by a combination...
A hydroxypropyl Ganoderma lucidum polysaccharide (H-GLP) was prepared from a low-value water-insoluble polysaccharide from G. lucidum (GLP) using propylene oxide under an alkaline condition. The H-GLP was characterised for its chemical structure with IR and 13 C NMR spectra and analysed for its mono-sugar composition, molecular weight, and hydroxypropyl content. H-GLP contained mannose, glucose,...
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