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Isolation and NMR Characterisation of a (4-O-methyl-D-glucurono)-D-xylan From Sugar Beet Pulp

Isolation and NMR Characterisation of a (4-O-methyl-D-glucurono)-D-xylan From Sugar Beet Pulp

E Dinand, M R Vignon

Carbohydr Res. 2001 Jan 30;330(2):285-8.

PMID: 11217983

Abstract:

Stable aqueous suspensions of purified and homogenised sugar beet pulp (SBP) cellulose were subjected to various TFA treatments which induced a flocculation of the suspension and the release of a number of polysaccharides. Among these, a 4-O-methyl glucuronoxylan was isolated and characterized by 1H and 13C NMR spectroscopy. In this polysaccharide the molar proportions of D-Xyl and 4-O-Me-D-GlcA were found to be 7:1. The presence of a glucuronoxylan at the surface of the cellulose microfibrils is very likely involved in the stability of the suspensions. To our knowledge, the presence of a 4-O-methyl-glucuronoxylan in the sugar beet cells has not been described previously.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS7413135	4-O-Methyl-D-glucurono-D-xylan			Price

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