Isolation and preliminary characterization of a highly pyruvylated galactan sulfate from Codium yezoense (Bryopsidales, Chlorophyta)

被引:14
作者
Bilan, Maria I. [1 ]
Vinogradova, Ekaterina V. [1 ]
Shashkov, Alexander S. [1 ]
Usov, Anatolii I. [1 ]
机构
[1] Russian Acad Sci, ND Zelinskii Organ Chem Inst, Moscow 119991, Russia
关键词
Chlorophyta; Codium yezoense; galactan sulfate; pyruvate;
D O I
10.1515/BOT.2006.029
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
A pyruvylated galactan sulfate containing D-galactose, sulfate and pyruvate in a molar ratio of about 4: 2: 1 was isolated from Codium yezoense by extraction with water followed by anion-exchange chromatography. According to NMR spectral data, the majority of pyruvic acid residues are linked as 5-membered cyclic ketals to O-3 and O-4 of galactose residues, and a smaller part of the pyruvate is located at O-4 and O-6. To our knowledge, this is the second detection of pyruvic acid as a component of green algal polysaccharides, while 5-membered pyruvic acid ketals have never been found so far in any algal polysaccharide.
引用
收藏
页码:259 / 262
页数:4
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