Evdoxia Asimakopoulou, Thomas Goudoulas, Ioannis I Andreadis, Dimitrios G Fatouros, Mehraj Ahmad, Chrisi Vasiliadou, Athina Theocharidou, Christos Ritzoulis
Rheological analysis of citrus pectin at pH 3 and 7 elucidates its structural dynamics, revealing distinct behaviors influenced by pH. At pH 3, pectin exhibits shear-thinning, with solvent-independent unified rheological profiles identifying three concentration regimes: 0.5%-1.5%, 2%-3%, and 3.5%-4%. These regimes, alongside Cox-Merz superpositions, outline the semi-dilute (c*) and concentrated (c**) transitions at 1.5%-2% and 3%-3.5%, respectively. Moreover, a Morris equation exponent of 0.65 indicates flexible, mobility-restricted macromolecules...
April 2024: Journal of Texture Studies