Rheological discrimination and characterization of carrageenans and starches by Fourier transform-rheology in the non-linear viscous regime

✍ Scribed by Christopher Klein; Paul Venema; Leonard Sagis; Erik van der Linden

• Book ID: 104024137
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 644 KB
• Volume: 151
• Category: Article
• ISSN: 0377-0257
• DOI: 10.1016/j.jnnfm.2008.01.001

✦ Synopsis

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.