Time-Dependent and Time-Independent Rheological Characterization of Date Syrup
- Ibrahim Mohamed
- Eihab Hassan
Abstract
The time-dependent and time-independent rheological properties of Barhi date syrup have been investigated. Rheological measurements were performed with a rotational viscometer with parallel plate geometry. The date syrup showed thixotropic behavior and a first order exponential decay model characterized the time-dependent behavior. The rate constant of the structure breakdown was found to be a function of shear rate. The steady shear flow measurements showed that the date syrup is a non-Newtonian material fit the power law model (p <0.001). The Arrhenius model described the effect of temperature on consistency coefficient; the estimated parameters from the Arrhenius equation were used to develop a prediction rheological model for the apparent viscosity. The model accurately predicts the experimental data even when extrapolating beyond parameter estimation temperature range. The time-independent viscosity model was satisfactory for modeling date syrup despite the presence of thixotropic behavior.- Full Text:
PDF
- DOI:10.5539/jfr.v5n2p13
Journal Metrics
Google-based Impact Factor (2020): 0.77
h-index (December 2020): 30
i10-index (December 2020): 165
h5-index (December 2020): 15
h5-median(December 2020): 22
( The data was calculated based on Google Scholar Citations. Click Here to Learn More. )
Index
Contact
- Bella DongEditorial Assistant
- jfr@ccsenet.org