Galactomannans from two species of Gleditsia studied by C-13 NMR

Authors
Rakhmanberdyeva, RK Mirzaeva, MR Rakhimov, DA Abdullaev, ND
Citation
Rk. Rakhmanberdyeva et al., Galactomannans from two species of Gleditsia studied by C-13 NMR, CHEM NAT CO, 35(5), 1999, pp. 498-501
Citations number
6
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
CHEMISTRY OF NATURAL COMPOUNDS
ISSN journal
00093130 → ACNP
Volume
35
Issue
5
Year of publication
1999
Pages
498 - 501
Database
ISI
SICI code
0009-3130(199909/10)35:5<498:GFTSOG>2.0.ZU;2-L
Abstract
Galactomannans isolated from the seeds of Gleditsia macracantha (GMM) and G leditsia texana (GMT) have molecular masses (MM) of 750,000 and 795,000 and galactose to mannose ratios of 1.0:4.9 and 1.0:3.8, respectively. GMT and GMM are depolymerized to fragments of MM 25 and 19 kDa with,retention of th e primary structure and are studied by C-13 NMR spectroscopy. The principal chains of GMM and GMT are beta-1-4-mannopyranose residues in which the hyd roxyl groups of C-6, are substituted single a-D-galactopyranose units.