Article ID Journal Published Year Pages File Type
4565648 LWT - Food Science and Technology 2006 5 Pages PDF
Abstract

The temperature effect on rheological behavior of whole araçá pulp was investigated in this work. The pulp was processed in a depulper with a 1.5 mm screen to obtain a uniform consistency. The rheological measurements were carried out in a concentric cylinder Brookfield rheometer, with a small sample adapter and spindle SC4-27, in a shear rate range of 2.80–70 s−1. The whole pulp was properly described by the power law model and exhibited a shear thinning behavior. The viscosity decreased with an increase in temperature; however, the viscosity showed a tendency to increase at 60 °C. The Arrhenius model gave a good description of temperature effect on apparent viscosity of the pulp, where the activation energy (Ea) determined at a shear rate of 50 s−1 was 11.03 kJ mol−1.

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Life Sciences Agricultural and Biological Sciences Food Science
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