Chem. J. Chinese Universities ›› 2005, Vol. 26 ›› Issue (1): 179.

• Articles • Previous Articles     Next Articles

Preparation and Structural Characterization of Several Oligoguluronic Acids

WANG Ying1, YU Guang-Li1, ZHAO Xia1, GUAN Hua-Shi1, DU Yu-Guo2   

  1. 1. Marine Drug and Food Institute, Ocean University of China, Qingdao 266023, China;
    2. The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2003-11-04 Online:2005-01-10 Published:2005-01-10

Abstract: The polyguluronic acid obtained from alginate was degraded through acid hydrolysis. The oligosaccharides mixture was fractionated by LPGPC and HPLC methods, and Fluorophore-Assisted-Carbohydrate-Electrophoresis(FACE) was used to confirm their purity. The structure of these oligosaccharides were determined as diguluronic, triguluronic, tetraguluronic and pentaguluronic acids by IR, ESI/MS/MS and 1D, 2D NMR techniques.

Key words: Oligoguluronic acid, Preparation, Structural characterization

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