Imbibition, desiccation and mechanical deformations of zein pills in relation to their porosity - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles European Physical Journal E: Soft matter and biological physics Year : 2006

Imbibition, desiccation and mechanical deformations of zein pills in relation to their porosity

Abstract

This paper deals with the interaction between zein (the main protein component of corn grain) and water. It induces macroscopic properties changes and may allow for the understanding of the basis of zein endosperm structure: vitreous endosperm is compact and floury endosperm is porous, giving the endosperm its hard and soft textures, respectively. In that aim porous pills made by compaction of zein powder submitted to different hydration/dehydration processes have been prepared and studied. In particular, imbibition measurements of a pure-water drop deposited onto a zein pill were performed. Also, desiccation of a zein pill previously imbibed induces strong mechanical stresses leading to crack formation and/or large deformations.

Dates and versions

hal-02662683 , version 1 (31-05-2020)

Identifiers

Cite

M.A. Sabino, L. Pauchard, C. Allain, Paul Colonna, Denis Lourdin. Imbibition, desiccation and mechanical deformations of zein pills in relation to their porosity. European Physical Journal E: Soft matter and biological physics, 2006, 20 (1), pp.29-36. ⟨10.1140/epje/i2004-10160-7⟩. ⟨hal-02662683⟩
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