Structural characterization of a 2-O-acetylglucomannan from Dendrobium officinale stem.

@article{Hua2004StructuralCO,
  title={Structural characterization of a 2-O-acetylglucomannan from Dendrobium officinale stem.},
  author={Yun-fen Hua and Ming Zhang and Cheng-xin Fu and Zhang-Hui Chen and Gilbert Yuk Sing Chan},
  journal={Carbohydrate research},
  year={2004},
  volume={339 13},
  pages={2219-24}
}
A heteropolysaccharide obtained from an aqueous extract of dried stem of Dendrobium officinale Kimura and Migo by anion-exchange chromatography and gel-permeation chromatography, was investigated by chemical techniques and NMR spectroscopy, and is demonstrated to be a 2-O-acetylglucomannan, composed of mannose, glucose, and arabinose in 40.2:8.4:1 molar ratios. It has a backbone of (1-->4)-linked beta-d-mannopyranosyl residues and beta-d-glucopyranosyl residues, with branches at O-6 consisting… CONTINUE READING

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