Structural features of water-soluble arabinogalactans from Norway spruce and Scots pine heartwood

被引：0

作者：

S. Willför

R. Sjöholm

C. Laine

B. Holmbom

机构：

[1] Åbo Akademi University,

[2] Process Chemistry Group,undefined

[3] c/o Laboratory of Forest Products Chemistry,undefined

[4] Porthansgatan 3,undefined

[5] 20500 Turku/Åbo,undefined

[6] Finland e-mail: stefan.willfor@abo.fi,undefined

[7] Åbo Akademi University,undefined

[8] Laboratory of Organic Chemistry,undefined

[9] Biskopsgatan 8,undefined

[10] 20500 Turku/Åbo,undefined

[11] Finland,undefined

[12] The Finnish Pulp and Paper Research Institute KCL,undefined

[13] P.O. Box 70,undefined

[14] 02151 Espoo,undefined

[15] Finland,undefined

来源：

Wood Science and Technology | 2002年 / 36卷

关键词：

Structural Feature; Arabinose; Single Unit; Glucuronic Acid; Methylation Analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Isolated water-soluble acidic arabinogalactans from Norway spruce and Scots pine heartwood were analysed and compared to Siberian larch heartwood arabinogalactans. The carbohydrate monomer composition was determined by acid methanolysis and gas chromatography, while structural studies were performed by 13C NMR spectroscopy and methylation analysis. The main structural features were found to be the same in the three types of arabinogalactans. However, the structure of the arabinogalactans from spruce and pine were found slightly different from the structure of larch arabinogalactans. The amount of single unit side-chains, consisting of arabinose and glucuronic acid units, was higher in the spruce and pine arabinogalactans than in the larch arabinogalactans. The amount of glucuronic acid was higher in the spruce arabinogalactans than in the pine arabinogalactans. The pine arabinogalactans had a higher amount of side chains with more than two sugar units than the spruce arabinogalactans.

引用

页码：101 / 110

页数：9

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