Structural investigations of the neutral polysaccharide of Linum usitatissimum L. seeds mucilage.
The heterogeneity of the purified water-soluble neutral fraction coming from the mucilage extract of the yellow flaxseed was investigated. After fractionation by size-exclusion chromatography, the analyse of the neutral monosaccharides composition showed a mixture of three major families of polymers. They were all identified as arabinoxylans with a constant A/X ratio of 0.24, but varying in their galactose and fucose residues in the side chains. Furthermore, the molecular weight (M(w)) analysis acquired by multi-angle laser light scattered, revealed the association of two high M(w) polymers [5.7x10(6) (11.1%) and 9.3x10(5) (42.4%) g mol(-1)] with a smaller one [3.2x10(5) g mol(-1) (45.3%)].
Warrand
J
J
Laboratoire des Glucides-EPMV (CNRS-FRE 2779), IUT d'Amiens (GB), Université de Picardie Jules Verne, Avenue des Facultés, Le Bailly, 80 025 Amiens Cedex 1, France.
Michaud
P
P
Picton
L
L
Muller
G
G
Courtois
B
B
Ralainirina
R
R
Courtois
J
J
D000269:Adhesives / Q000737:chemistry*; D002236:Carbohydrate Conformation; D019597:Flax / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D014990:Xylans / Q000032:analysis*
D000269:Adhesives; D014990:Xylans; C085118:arabinoxylan