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Structural features of an arabinoxylan and rhamnogalacturonan derived from linseed mucilage.

Muralikrishna, G. and Salimath, P. V. and Tharanathan, R. N. (1987) Structural features of an arabinoxylan and rhamnogalacturonan derived from linseed mucilage. Carbohydrate Research, 161. pp. 265-271.

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Abstract

The mucilage, obtained (6%) by aqueous extraction of linseed, on fractionation with Cetavlon gave precipitable (CeP, 58%) and non-precipitable (CeNP, 28%) fractions. Further fractionation on DEAE-cellulose furnished a series of fractions of which the water-eluted neutral fraction of CeNP and the 0.2M ammonium carbonate-eluted acidic fraction of CeP were homogeneous. The neutral fraction contained L-arabinose, D-xylose, and D-galactose (3.5:6.2:1), and the acidic fraction contained L-rhamnose, L-fucose, L-galactose and D-galacturonic acid (2.6:1:1.4:1.7). The neutral fraction was anarabinoxylan having a (1->4)-beta-D-xylan backbone to which arabinose and galactose side-chains were attached at positions 2 and/or 3. The acidic fraction had a backbone of (1->2)-linked alpha-L-rhamnopyranosyl and (1->4)-linked D-galactopyranosyluronic acid residues, with side-chains of fucose and galactose residues, the former essentially at the non-reducing end.

Item Type: Article
Uncontrolled Keywords: Polysaccharides; Methylation; Oligosaccharides
Subjects: 600 Technology > 08 Food technology > 19 Lipids-oils/fats > 01 Oilseeds
Divisions: Dept. of Biochemistry
Depositing User: Users 197 not found.
Date Deposited: 21 Dec 2011 11:32
Last Modified: 21 Dec 2011 11:32
URI: http://ir.cftri.com/id/eprint/5524

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