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

S. Willför; R. Sjöholm; C. Laine; B. Holmbom

doi:10.1007/s00226-001-0137-x

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

S. Willför^*
, R. Sjöholm
, C. Laine
, B. Holmbom

^*Corresponding author for this work

Åbo Akademi University

Research output: Contribution to journal › Article › Scientific › peer-review

96 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	101-110
Number of pages	10
Journal	Wood Science and Technology
Volume	36
Issue number	2
DOIs	https://doi.org/10.1007/s00226-001-0137-x
Publication status	Published - Apr 2002
MoE publication type	A1 Journal article-refereed

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title = "Structural features of water-soluble arabinogalactans from Norway spruce and Scots pine heartwood",

abstract = "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.",

author = "S. Willf{\"o}r and R. Sj{\"o}holm and C. Laine and B. Holmbom",

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T1 - Structural features of water-soluble arabinogalactans from Norway spruce and Scots pine heartwood

AU - Willför, S.

AU - Sjöholm, R.

AU - Laine, C.

AU - Holmbom, B.

PY - 2002/4

Y1 - 2002/4

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0036542046

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SP - 101

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JO - Wood Science and Technology

JF - Wood Science and Technology

IS - 2

ER -

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

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