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Article Dans Une Revue Journal of Cereal Science Année : 2010

Effect of wheat dietary fibres on bread dough development and rheological properties

Résumé

Several fractions of wheat fibres were isolated from starchy endosperm, aleurone layer and bran, and characterized for their hydration properties and arabinoxylans (AX) content. The influence of their addition, up to 10%, to standard flour was studied through mixing tests, and rheological tests at small and large deformations. The effect of insoluble AX on dough development was accounted for by their capacity to retain water, whatever their origin and percentage of addition. The addition of insoluble AX increased the viscoelastic plateau modulus. The addition of soluble and insoluble AX to the dough did not modify the overall dough flow behaviour in shear, characterized by a Newtonian plateau at low shear rates followed by shear-thinning behaviour at larger shear rates. This behaviour could be fitted by the Cross model. The addition of water soluble AX modified the Newtonian viscosity value. Conversely, the addition of insoluble ones increased dough consistency, probably through a filler-like effect in the dough matrix.

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Dates et versions

hal-02668071 , version 1 (31-05-2020)

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M. Bonnand-Ducasse, Guy G. Della Valle, J. Lefebvre, Luc L. Saulnier. Effect of wheat dietary fibres on bread dough development and rheological properties. Journal of Cereal Science, 2010, 52 (2), pp.200-206. ⟨10.1016/j.jcs.2010.05.006⟩. ⟨hal-02668071⟩

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