Enhanced Rheological Characterization of Starch-Based Materials using the Starch Pasting Cell
Starch, which is an important polymeric material present in a wide range of food and biomaterial products, presents significant challenges to rheological characterization. The Rapid Visco Analyzer (RVA) represents a traditional means of evaluating starch pasting properties. However, the RVA measures viscous properties, while most food materials including starch are viscoelastic. Although traditional rotary rheometer geometries can perform viscoelastic characterization, they are not designed to prevent moisture loss and starch granule sedimentation during analysis. Nevertheless, limitations associated with both the RVA and traditional rotary rheometer geometries have been recently minimized through development of the Starch Pasting Cell (TA Instruments), a new geometry for the rotary rheometer. The proposed project aims at acquisition of a Starch
Pasting Cell for an existing AR2000 rotary rheometer housed within Department of Food Science and Toxicology at the University of Idaho. The acquisition of a Starch Pasting Cell will provide increased insight and interpretative power for rheological characterization of starch-based materials to enhance value and end-use potential of agricultural commodities, flours and isolated starches. This instrument will enhance the ability to generate both preliminary and full-scale data necessary for the procurement of significant research funding, which will facilitate the expansion, competitiveness, and long-term stability of the associated research programs.