Author/Authors :
Masato Nagaoka، نويسنده , , Hideyuki Shibata، نويسنده , , Itsuko Kimura، نويسنده , , Shusuke Hashimoto، نويسنده , , Kazumasa Kimura، نويسنده , , Haruji Sawada، نويسنده , , Teruo Yokokura، نويسنده ,
Abstract :
The major fraction of rhamnogalactan was isolated from the cell wall of Bifidobacterium longum YIT4028 by treatment with N-acetylmuramidase. This polysaccharide was composed of rhamnose and galactose in a molar ratio of about 2 : 3. The 13C NMR spectrum indicated that it contained a pentasaccharides repeating unit. This observation, and the results of Smith degradation, partial acid hydrolysis and methylation analysis led to the conclusion that its structure is