Journal
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
Volume 151, Issue 1-3, Pages 145-150Publisher
ELSEVIER
DOI: 10.1016/j.jnnfm.2008.01.001
Keywords
FT-rheology; polysaccharides; LAOS; non-linear regime; characteristic functions
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Classical rheological methods are often insufficient to characterize and to differentiate the non-linear rheological behavior of polysaccharide systems such as carrageenan or starch. In this article the non-linear rheological method of characteristic functions is used to discriminate between the different polysaccharides. This method is based on the Fourier transform-rheology (FT-rheology). The response of a sample is decomposed using simple characteristic functions. We show that there are differences in the response of a number of carrageenan and starch samples, which are not distinguishable with classical rheometry. (C) 2008 Elsevier B.V. All rights reserved.
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