20227-22-9Relevant academic research and scientific papers
Isolation and structural characterization of a novel galactomannan from Eremurus anisopterus (Ker. et Kir) Regel roots
Hu, Changfeng,Kong, Qingjun,Yang, Deyu,Pan, Yuanjiang
experimental part, p. 402 - 406 (2012/02/03)
A novel galactomannan was obtained from the roots of Eremurus anisopterus (Ker. et Kir) Regel, an ephemeroid plant in the Gurbantunggut Desert in Xinjiang. The crude polysaccharide was extracted following the usual separation procedure, including water dissolution, centrifugation and precipitation with ethanol. The crude polysaccharide was then applied to anion-exchange chromatography and gel filtration to obtain a homogeneous polysaccharide E 1. The average molecular weight of E1 was estimated to be 6 kDa according to the calibration curve. On the basis of composition analysis, methylation analysis, periodate oxidation analysis, Smith degradation, infrared spectra (IR) and nuclear magnetic resonance (NMR) experiments, E1 is a novel linear galactomannan with a main chain composed of (1 → 6)-linked α-d-Galp and (1 → 2)-α-d-Manp at a relative molar ratio of 1:3.
Glucomannans of serissa serissoides stem
Zhao, Hanmin,Zhou, Min,Huang, Meiyan,Wang, Kuiwu,Wei, Wanxing
experimental part, p. 176 - 178 (2011/09/19)
One β-D-glucomannan was isolated from Serissa serissoides (DC.) Druce. The average molecular weight of the polysaccharide was established to be 2.9 × 103 Da. The structure of the polysaccharide from S. serissoides (SSP) was investigated by using sugar and methylation analysis, infrared spectroscopy, mass spectrometry, and NMR spectroscopy. The experiments revealed that SSP consisted of β-D-Glcp and β-D-Manp units in the ratio of approximately 1.1:1 with β-D-(1→4)-Glcp and β-D-(1→2) Manp linkages
Side-chain structure of cell surface polysaccharide, mannan, affects hypocholesterolemic activity of yeast
Yoshida, Yasuto,Naito, Eiichiro,Mizukoshi, Harumi,Watanabe, Yoko,Kazumasa, Kimura,Wakae, Yokoi,Tadashi, Sato,Takekazu, Okumura,Masahiko, Ito And,Haruji, Sawada
experimental part, p. 8003 - 8009 (2010/08/20)
We previously reported that Kluyveromyces marxianus YIT 8292 exhibited more potent hypocholesterolemic activity than other yeasts containing Saccharomyces cerevisiae. To clarify the reason for the higher hypocholesterolemic activity, we examined the side-
THE CAPSULAR POLYSACCHARIDE OF Klebsiella SEROTYPE K60; A NOVEL STRUCTURAL PATTERN
Dutton, Guy G. S.,Fabio, Jose Di
, p. 129 - 140 (2007/10/02)
Non-linear capsular polysaccharides of Klebsiella bacteria usually have a single side-chain per repeating unit, or, less commonly, two side-chains attached to the same unit.The capsular polysaccharide from Klebsiella serotype K60 is unique in having three side-chains in the heptasaccharide repeating-unit shown.The structure, including the configuration of the glycosidic linkages, was established mainllly by characterization of the oligosaccharides obtained by partial hydrolysis of both the original, capsular and the polymer resulting from the removal, by Smith degradation, of the side chains.
