Structural features and rheological behavior of a water-soluble polysaccharide extracted from the seeds of Plantago ciliata Desf. - Université Clermont Auvergne Accéder directement au contenu
Article Dans Une Revue International Journal of Biological Macromolecules Année : 2020

Structural features and rheological behavior of a water-soluble polysaccharide extracted from the seeds of Plantago ciliata Desf.

Résumé

A water-soluble polysaccharide (PSPC) was extracted from the seeds of Plantago ciliata Desf., a spontaneous Algerian Saharan plant by a hot aqueous extraction then purified by successive ethanolic precipitations. The final extraction yield for PSPC was close to 18.6% (w/v). PSPC was then investigated regarding its global composition, structural features and rheological properties. PSPC is a neutral arabinoxylan, composed of a β-(1,3)/β-(1,4)-D-xylan backbone with side chains of Xylp, and Araf residues attached in O-2 and O-3 positions. The macromolecular characteristics of PSPC in water was determined by SEC/MALLS, with a high molecular weight (Mw) of 700 kDa, a low polydispersity index (PDI) of 1.47 and an intrinsic viscosity [η] close to 157 mL/g. PSPC showed a pseudoplastic behavior in semi-dilute media and the critical overlay concentration (C*) was estimated around 0.32–0.37% (w/v). This current research has supplied original structural information on a new arabinoxylan which could be particularly useful as a novel source of soluble fiber belonging to psyllium.
Fichier principal
Vignette du fichier
1-s2.0-S0141813019382030-am.pdf (1.34 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-02415815 , version 1 (28-02-2023)

Identifiants

Citer

Noura Addoun, Zakaria Boual, Cédric Delattre, Alina Violeta Ursu, Jacques Desbrieres, et al.. Structural features and rheological behavior of a water-soluble polysaccharide extracted from the seeds of Plantago ciliata Desf.. International Journal of Biological Macromolecules, 2020, 155, pp.1333-1341. ⟨10.1016/j.ijbiomac.2019.11.106⟩. ⟨hal-02415815⟩
92 Consultations
30 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More