Structural analysis of carrageenans from the red alga, Callophyllis hombroniana Mont. Kutz (Kallymeniaceae, Rhodophyta)

摘要

The use of a range of modern analytical techniques has facilitated the structural characterisation of the polysaccharide from the New Zealand endemic red alga, Callophyllis hombroniana. The native polysaccharide contains a number of structural units with the largest proportion consisting of 3-linked beta-D-galactopyranosyl 2-sulfate units, alternating with 4-linked 3,6-anhydro-alpha-D-galactopyranosyl 2-sulfate units, that is, theta-carrageenan (36 mol %). C hombroniana is the first red seaweed reported to naturally contain such a large proportion of theta-carrageenan. (c) 2005 Elsevier Ltd. All rights reserved.