Related Experiment Videos
Structural investigation of Ceratozamia spinosa mucilage
G Barone1, M M Corsaro, C De Castro
1Dipartimento di Chimica Organica et Biologica, Università di Napoli Federico II, Italy.
Carbohydrate Research
|July 16, 1994
Abstract:
The polysaccharide fraction from Ceratozamia spinosa appears to be made up mainly by a chemically homogeneous polysaccharide but with a wide range of molecular weight. By NMR and chemical degradative methods, it is shown to consist essentially of a backbone of alternate-->4)-beta-D-GlcpA-(1-->and-->2)-alpha-D-Manp-(1--> units. On the 4 position of the latter, beta-D-GlcpA residues are linked. End units of alpha-L-Araf, beta-D-Xylp, alpha-L-Rhap, and alpha-L-3-OMe-Rhap are linked to C-3 and/or C-4 positions of beta-D-GlcpA residues.