ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The effects of granule size and size distribution on rheological behavior of hydroxypropylated and phosphate cross-linked potato starch (HPS) were studied by steady and dynamic viscoelasticity measurements. The rheological behavior of starch dispersions was strongly influenced by granule size and granule-to-granule interaction. Average granule size of HPS dispersion at high concentration was smaller than that at low concentration. Time dependence of viscosity was quite different depending on shear rate; thixotropy at low shear rates and antithixotropy at high shear rates. At higher concentrations, HPS dispersion showed a non-Newtonian behavior, and it tended to a Newtonian behavior when concentration was lowered. Yield stress and creep recovery of HPS dispersion at higher concentrations was more pronounced than those at lower concentrations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.2002.tb10295.x
