Structural analysis of carrageenans from the red alga, Callophyllis hombroniana Mont. Kütz (Kallymeniaceae, Rhodophyta).
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.
Falshaw
Ruth
R
Industrial Research Ltd, PO Box 31-310, Lower Hutt, New Zealand. r.falshaw@irl.cri.nz
Furneaux
Richard H
RH
Stevenson
David E
DE
D000085:Acetates / Q000737:chemistry; D000107:Acetylation; D002351:Carrageenan / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D015394:Molecular Structure; D009520:New Zealand; D000461:Rhodophyta / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013455:Sulfur / Q000737:chemistry
D000085:Acetates; D013455:Sulfur; D002351:Carrageenan