Related Experiment Video
Updated: Feb 7, 2026

Challenges in Rheological Characterization of Highly Concentrated Suspensions — A Case Study for Screen-printing Silver Pastes
Published on: April 10, 2017
Rheological characterization of fenugreek gum and comparison with other galactomannans
Pravin Vasant Gadkari1, Sylvana Tu1, Khorametha Chiyarda1
1Department of Food and Bioproduct Science, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada.
Abstract:
Fenugreek gum (FG), guar gum (GG), and locust bean gum (LBG) dispersions were studied for their flow behaviour, intrinsic viscosity, viscoelasticity and the effect of environmental stress on their physicochemical properties. Shear thinning behaviour was observed in all three gum dispersions prepared at concentrations > 0.25 wt%. The impact of the change in concentration (0.125 to 2 wt%) on dispersion flow behaviour and consistency coefficient were determined using power law model. Both GG and LBG dispersions have a higher intrinsic viscosities (16.93 ± 0.02 dL/g and 15.20 ± 0.02 dL/g) compared to FG (13.46 ± 0.02 dL/g), but FG has higher average viscosity molecular weight (3.10 ± 0.01) compared to GG and LBG. This could impart higher apparent viscosity to FG dispersions compared to GG and LBG. All gum dispersions above 0.1 wt% concentration showed entanglement among the polymer chains. Variation in pH (3-7) did not significantly affect viscosity of the dispersions while it was significantly decreased with the addition of salt. The FG had superior gelling properties compared to GG, and LBG at 1 wt% concentration which could have potential application in certain food and non-food products.
Related Concept Videos
The Sense of Self: Reflected Self-Appraisal and Social Comparison
Multiple Comparison Tests
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
Evolutionary Relationships through Genome Comparisons
Comparison Between Electrical And Gravitational Forces
Since both are inverse square law forces, the distance gets canceled when the ratio of the two forces is considered. Instead, the ratio of the electrical and gravitational forces depends on...
Comparison between RL and RC circuits
Molecular Comparison of Gases, Liquids, and Solids

