A nearly idealized 6 '-O-methylated t-carrageenan from the Australian red alga Claviclonium ovatum (Acrotylaceae, Gigartinales)
Data(s) |
01/01/2004
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Resumo |
The polysaccharides extracted from Claviclonium ovatum were studied by a combination of compositional assays, reductive partial hydrolysis, linkage analysis, Fourier Transform infrared (FTIR) spectroscopy, and C-13, H-1, and C-13/H-1 heteronuclear multiple quantum correlation (HMQC) two-dimensional nuclear magnetic resonance (NMR) spectroscopy. The chemical and spectroscopic data showed that the alkali-modified C. ovatum polysaccharides are composed of a nearly idealized repeating unit of 6'-O-methylcarrabiose 2,4'-disulfate (the repeating unit of 6-O-methylated iota-earrageenan), although some minor components were also present. The C. ovatum galactans are the most highly methylated carrageenans reported. (C) 2004 Elsevier Ltd. All rights reserved. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier Science |
Palavras-Chave | #Biochemistry & Molecular Biology #Chemistry, Applied #Chemistry, Organic #Acrotylaceae #Australia #Carbohydrate Analysis #Gigartinales #T-carrageenan #O-methyl Ether #Polysaccharide Structure #Rhodophyta #Family Solieriaceae Gigartinales #Reductive Partial-hydrolysis #Cell-wall Polysaccharides #Nmr-spectroscopy #Sulfated Polysaccharides #Methylated Carrageenans #Structural-analysis #Chemical-structure #Nipae Zanardini #C-13 Nmr #C1 #250302 Biological and Medical Chemistry #780105 Biological sciences |
Tipo |
Journal Article |