| Abstract
| - Water-soluble polysaccharides were extracted from flaxseed cake and analyzed. Two groups wereseparated by anion-exchange chromatography. The first one (nonretained) was the major fraction(83%) and possessed a high molecular weight (HMW) arabinoxylan (56%) with an Ara/Xyl ratio of0.32 and an Mw of 846 000. This polymer was accompanied by a smaller galactoglucan (44%), withan Mw of 6.5 × 104. The latter group (17%), retained by the gel, was further described as a HMWpectin heterogeneous group, with, respectively, 3.1 × 105 and 1.3 × 105. Despite the presence ofHMW arabinoxylans, the investigation of rheological flow sweep at the concentration of 2% (w/v) hasshown a slight shear thinning behavior with a small zero-rate viscosity at 9.6 Pa·s. Keywords: Flaxseed cake; Linum usitatissimum; chromatography; arabinoxylan; polysaccharides;multiangle laser light scattering
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