Abstract
The two major components of
the water-soluble polysaccharides extracted from the sapwood of Pinus radiata were
a galactoglucomannan and an arabinogalactan.
The galactoglucomannan had a number average degree of
polymerization of approximately 30, and on complete acid hydrolysis it yielded
D-mannose, D-galactose and D-glucose in the ratio 4.5 : 1.3 : 1.0. The
structural determination of this polysaccharide by methylation analysis and 13C
n.m.r. suggested that it is a linear glucomannan with
α-D-galactopyranosyl residues as single side units.
No evidence could be found of any branches in the polymer, although the
possibility of a small degree of branching cannot be dismissed.
Cited by
10 articles.
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