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Structural studies on a cell wall polysaccharide from Bifidobacterium longum YIT4028

✍ Scribed by Masato Nagaoka; Hideyuki Shibata; Itsuko Kimura; Shusuke Hashimoto; Kazumasa Kimura; Haruji Sawada; Teruo Yokokura

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 282 KB
Volume: 274
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(95)00076-6

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✦ Synopsis

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 rhanmose 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 • --~2)-.et-I.

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