Gradient in dissolution capacity of successively deposited cell wall layers in cotton fibres

Le Moigne Nicolas, Montes Emilie, Pannetier Catherine, Höfte Herman, Navard Patrick. 2008. Gradient in dissolution capacity of successively deposited cell wall layers in cotton fibres. Macromolecular Symposia, 262 (1) : 65-71. Conference on Structure and Properties of Cellulose, Wiesbaden, Allemagne, 26 Juin 2007/28 Juin 2007.

Résumé : The dissolution of cotton fibres has been studied at different development stages before and after the onset of secondary wall deposition in solvents of varying quality. We show that the dissolution of the primary wall is inefficient even in good solvents. In moderately good solvents, the inside of the secondary wall dissolves by fragmentation, whereas the outside of the secondary wall swells. These data demonstrate the existence of a centripetal radial gradient in the dissolution capacity within the fibre, which must be related to age-dependent structural variation in the cell wall layers.

Mots-clés Agrovoc : fibre végétale, coton, solvant, dissolution, paroi cellulaire, qualité

Mots-clés complémentaires : Fibre de coton

Classification Agris : Q60 - Traitement des produits agricoles non alimentaires

Champ stratégique Cirad : Hors axes (2005-2013)

Auteurs et affiliations

• Le Moigne Nicolas, Ecole des mines de Paris (FRA)
• Montes Emilie, INRA (FRA)
• Pannetier Catherine, CIRAD-PERSYST-UPR Systèmes cotonniers (FRA)
• Höfte Herman, INRA (FRA)
• Navard Patrick, Ecole des mines de Paris (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/546456/)

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