Structuring of biopolymer products - New trends in processing: Towards well-defined process conditions
5 important questions on Structuring of biopolymer products - New trends in processing: Towards well-defined process conditions
What is the mechanism to order a product on molecular scale? And for larger structures?
- Molecular scale --> self-assembly
- Larger structures --> deformation
What is shear banding?
It is the ability of a flowing liquid to form adjacent regions that have a shear-rate discontinuity at their interface.
How can anisotropic structures be made from biopolymer mixtures?
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How are the molecular breakage of starch and shear stress related?
What is the difference between NaCas and CaCas structures after simple shear flow? And what is the difference caused by?
CaCas --> fibrous structures
CaCas dispersion contained larger micelles, which makes the CaCas micelles more susceptible to hydrodynamic (shear) flow. In addition, due to the presence of calcium, it is expected that the attractive forces between the micelles are larger in the case of CaCas-dispersion.
CaCas --> shear-thickening at low shear rates, shear-thinning at high shear rates
NaCas --> shear-thinning (liquid-like) --> self-assembly under flow, not significantly altered by shear
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