International Journal of Food Engineering
Editor-in-Chief: Chen, Xiao Dong
12 Issues per year
IMPACT FACTOR 2016: 0.685
CiteScore 2016: 0.73
SCImago Journal Rank (SJR) 2016: 0.293
Source Normalized Impact per Paper (SNIP) 2016: 0.391
Rheological Properties of Butia Pulp
Rheological parameters of Butia pulp were determined at different temperatures using a concentric cylinder Haake Rotovisco rheometer, model RV-20, with measurement system ZA-30. Butia pulp was found to exhibit non-Newtonian, pseudoplastic behavior at all temperatures and the rheological parameters were adequately described by the Herschel-Bulkley model. Yield stress, flow behavior index, and consistency coefficient were significantly affected by temperature. The yield stress decreased exponentially with process temperature and ranged between 36.60 and 21.70 Pa. Apparent viscosity calculated through the Herschel-Bulkley model decreased with an increase in temperature. The Arrhenius model gave a good description of temperature effect on apparent viscosity of the pulp.
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