Structural features of an anti-diabetic polysaccharide (TAP) from Tremella aurantia.
The structure of an anti-diabetic polysaccharide (TAP) obtained from the fruiting bodies of Tremella aurantia was investigated by methylation analysis, Smith degradation, partial acid hydrolysis, 13C-NMR spectrometry, and enzymatic digestion. The results suggested that TAP was composed of (1-->3)-linked alpha-D-mannopyranosyl residues as a backbone, some of which were substituted at position 2 with (1-->3)-linked beta-D-xylopyranose side chains and with beta-D-glucopyransyluronic acid at position 4 linked to terminal alpha-D-mannopyranose.
Kiho
T
T
Gifu Pharmaceutical University, Japan . kiho@gifu-pu.ac.jp
Kobayashi
T
T
Morimoto
H
H
Usui
S
S
Ukai
S
S
Hirano
K
K
Aizawa
K
K
Inakuma
T
T
D000107:Acetylation; D001487:Basidiomycota / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D006868:Hydrolysis; D007004:Hypoglycemic Agents / Q000737:chemistry*; D008745:Methylation; D011134:Polysaccharides / Q000737:chemistry*
D007004:Hypoglycemic Agents; D011134:Polysaccharides