The turbulent drag reduction characteristics of the rod-like polysaccharide xanthan gum dissolved in water was investigated using a rotating disk apparatus. The ultrasonic degra~tion method was adopted to obtain polymer fractions of different molecular weights of xanthan gum for this study. The drag
Rheological and drag reduction characteristics of xanthan gum solutions
β Scribed by H. -W. Bewersdorff; R. P. Singh
- Publisher
- Springer-Verlag
- Year
- 1988
- Tongue
- English
- Weight
- 829 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0035-4511
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The rheological properties of solutions of xanthan gum (Kelzan@ D) and three rhamsan gums, S-60, S-130 and S-194, are examined. Effects studied include those of temperature, concentration and (for the rhamsan gums) extent of side chain branching. Solutions of greater viscosity and elasticity at most
## Immune responses to xanthan gum I. The characteristics of lymphocyte activation by xanthan gum* Xanthan gum (XG), a microbial polysaccharide produced extracellularly by fermentation of Xanthornonas carnpestris, has unique physical properties. We studied the effects of XG on murine lymphocytes i