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Rheology of Muffin Batters by Line Spread Test and Viscosity Measurements

Journal: International Journal of Food Science, Nutrition and Dietetics (IJFS) (Vol.05, No. 09)

Publication Date:

Authors : ; ;

Page : 325-329

Keywords : Line Spread Test (LST); Viscosity; Flow Properties; Muffin Batters; Solid-Liquid Suspension; Food Slurry;

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This work was aimed to quantify the flow properties of muffin batters by Line Spread Test (LST) and to establish a valid correlation between their line spread distance and viscosity. LST is a quick and inexpensive method for comparing relative viscosities of food slurries or a solid-liquid suspension type of food materials, like muffin batters. The rheological properties of muffin batters formulated using gluten free flours were studied. Five different combinations of rice flour and quinoa flour were studied as gluten free flour combinations. Control muffin batters were formulated using 100% wheat flour, which is a gluten positive flour. Density, pH, line spread distance and viscosity were measured for all six batter formulations including control. All tests were performed in triplicate and all data were analyzed statistically. In general, gluten free flour reduced the density and increased the acidity of muffin batters. Whereas, line spread distance was increased and viscosity was decreased with replacement of quinoa flour to rice flour in the muffin batters. A valid correlation between line spread distance and viscosity was observed. The inverse of LST in cm/sec was observed to be close to the viscosity in poise for muffin batters in this study.

Last modified: 2017-05-31 17:43:31