Journal article
Continuous flow structuring of anisotropic biopolymer particles.
- Erni P Laboratory of Process Engineering, Institute of Food Science & Nutrition, ETH Zurich, 8092 Zurich, Switzerland. philipp.erni@alumni.ethz.ch
- Cramer C
- Marti I
- Windhab EJ
- Fischer P
- 2009-06-02
Published in:
- Advances in colloid and interface science. - 2009
English
We review concepts and provide examples for the controlled structuring of biopolymer particles in hydrodynamic flow fields. The structuring concepts are grouped by the physical mechanisms governing drop deformation and shaping: (i) capillary structuring, (ii) shear and elongational structuring and (iii) confined flow methods. Non-spherical drops can be permanently structured if a solidification process, such as gelation or glass formation in the bulk or at the interface, is superimposed to the flow field. The physical and engineering properties of these processes critically depend on an elaborate balance between capillary phenomena, rheology, gel or glass formation kinetics, and bulk heat, mass and momentum transfer in multiphase fluids. This overview is motivated by the potential of non-spherical suspension particles, in particular those formed from 'natural' and 'sustainable' biopolymers, as rheology modifiers in food materials, consumer products, cosmetics or pharmaceuticals.
- Language
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- English
- Open access status
- closed
- Identifiers
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- DOI 10.1016/j.cis.2009.05.005
- PMID 19481192
- Persistent URL
- https://sonar.ch/global/documents/208027
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