Isolation and characterization of a pure mannan from Oncidium (cv. Gower Ramsey) current pseudobulb during initial inflorescence development.

@article{Wang2006IsolationAC,
  title={Isolation and characterization of a pure mannan from Oncidium (cv. Gower Ramsey) current pseudobulb during initial inflorescence development.},
  author={Heng-Long Wang and Kai-Wun Yeh and Peng-Ren Chen and Chih-Hao Chang and Jin-mei Chen and Kay-Hooi Khoo},
  journal={Bioscience, biotechnology, and biochemistry},
  year={2006},
  volume={70 2},
  pages={
          551-3
        }
}
A water-soluble and neutral polysaccharide was extracted from the current pseudobulbs of Oncidium "Gower Ramsey" during the early inflorescence stage (flower stalk less than 4 cm) by hot water, precipitated with ethanol, and purified with an anion exchanger. From the data of monosaccharide composition and linkage and anomeric configuration analyses, the polysaccharide was identified as a linear beta-1-->4 linked mannan. 

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