CHEMICAL AND SPECTROSCOPIC STUDIES OF CERCIDIUM PRAECOX GUM EXUDATE

Authors
DEPINTO GL MARTINEZ M RIVAS C
Citation
Gl. Depinto et al., CHEMICAL AND SPECTROSCOPIC STUDIES OF CERCIDIUM PRAECOX GUM EXUDATE, Carbohydrate research, 260(1), 1994, pp. 17-25
Citations number
24
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Carbohydrate research → ACNP
ISSN journal
00086215
Volume
260
Issue
1
Year of publication
1994
Pages
17 - 25
Database
ISI
SICI code
0008-6215(1994)260:1<17:CASSOC>2.0.ZU;2-H
Abstract
The structure of the polysaccharide from Cercidium praecox (Rand P) Ha rms gum exudate has been studied by Smith degradation, by sugar and me thylation analyses, and by C-13 NMR spectroscopy. The results showed a (1 --> 4)-xylan core. Some xylose residues are substituted at O-2 by alpha-D-glucuronic acid and 4-O-methyl-alpha-D-glucuronic acid residue s. beta-D-Glucuronic acid is present, probably as terminal residues. T he arabinose is present as alpha-L-furanose and beta-L-pyranose.