Sulfated xylomannans isolated from red seaweeds Chondrophycus papillosus and C-flagelliferus (Ceramiales) from Brazil

被引：25

作者：

Cardoso, Marco A. ^{[1
]}

Noseda, Miguel D. ^{[1
]}

Fujil, Mutue T. ^{[2
]}

Zibetti, Rosiane G. M. ^{[3
]}

Duarte, Maria E. R. ^{[1
]}

机构：

[1] Univ Fed Parana, Dept Bioquim & Biol Mol, BR-85131990 Curitiba, Parana, Brazil

[2] Inst Bot, Secao Ficol, BR-04301012 Sao Paulo, Brazil

[3] Inst Ensino Superior Pequeno Principle, Curitiba, Parana, Brazil

来源：

CARBOHYDRATE RESEARCH | 2007年 / 342卷 / 18期

关键词：

algal polysaccharides; sulfated xylomannan; NMR spectroscopy; methylation analysis; red seaweeds; Chondrophycus; ceramiales;

D O I：

10.1016/j.carres.2007.08.024

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Sulfated xylomannans were isolated from two species of genus Chondrophycus by aqueous extraction followed by KCl fractionation. Structural determination of the native, desulfated and Smith-degraded KCl-precipitated polysaccharides carried out by composition and methylation analysis and NMR spectroscopy (ID and 2D experiments) showed the following general structure: [GRAPHICS] These xylomannans present different degrees of branching (15-25%) by P-D-Xylp (70-80%) and beta-D-Manp-2-S (20-30%) and molecular weights (33-222 kDa). This is the first report of the presence of a sulfated xylomannan in species of order Ceramiales. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2766 / 2775

页数：10

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