A re-examination and partial characterisation of polysaccharides released by mild acid hydrolysis from the chlorite-treated leaves of Sphagnum papillosum

Mild acid hydrolysis was used to release polysaccharides from the chlorite-treated leaves of Sphagnum papillosum. These polysaccharides, collectively known as sphagnan, were physically and chemically characterised. No evidence was found of the presence of a previously described 5-keto- d-mannuronic...

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Bibliographic Details
Published in:Carbohydrate polymers 2007-01, Vol.67 (1), p.104-115
Main Authors: Ballance, Simon, Børsheim, Knut Yngve, Inngjerdingen, Kari, Paulsen, Berit Smestad, Christensen, Bjørn E.
Format: Article
Language:English
Subjects:
5-keto- d-mannuronic acid
Applied sciences
Exact sciences and technology
Natural polymers
Peat
Physicochemistry of polymers
Sphagnan
Sphagnum moss
Starch and polysaccharides
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Summary:Mild acid hydrolysis was used to release polysaccharides from the chlorite-treated leaves of Sphagnum papillosum. These polysaccharides, collectively known as sphagnan, were physically and chemically characterised. No evidence was found of the presence of a previously described 5-keto- d-mannuronic acid (5-KMA) monomer in sphagnan, or in the chlorite-treated leaves from which sphagnan was extracted. After fractionation by anion-exchange chromatography the majority of polysaccharides were similar to rhamnogalacturonan I-type pectins. They were highly branched and had a weight average molecular weight of 3.9 × 10 g/mol.
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2006.04.020