Rheology of the pulp of castor-oil seeds and its effect on the process of pressing

Abstract

Structural and mechanical properties of pulp are represented as a two-phase system, in which phase relation through time varies in the process of deformation. The pulp consists of gel and oil parts. The gel phase is a coarse-dispersed gel powder, which is complex in chemical composition and has hydrophilic properties. The liquid phase is oil with solutes dissolved in it, located on the widely developed inner and outer surface of the particles.