Journal
CHEMICAL ENGINEERING & TECHNOLOGY
Volume 34, Issue 11, Pages 1869-1875Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201100257
Keywords
Droplet size; Emulsification; Emulsion; Polysorbates
Categories
Ask authors/readers for more resources
Additives such as emulsifiers and stabilizers (viscosity enhancers or polymers) are needed to stabilize emulsion systems against coalescence and creaming. A way to reduce emulsifier input by determining the effectiveness of different emulsifiers is described. Only disc systems with optimized configuration are applied for emulsification. Polysorbates are taken as an example for emulsifiers. The viscosity was increased with pectin as a viscosity enhancer to allow higher energy inputs by the disc systems and, therefore, to improve droplet disruption. The attainable mean diameters of oil droplets stabilized only by pectin were compared with the resulting mean diameters of oil droplets of emulsions containing polysorbates. Polysorbate 20, the emulsifier with the highest water solubility of all here described emulsifiers, proved to be the most effective in decreasing the mean diameter of the disperse phase when using disc systems. An optimal emulsifier concentration of 2wt-% for emulsions at low viscosities is observed for all polysorbates and for the whole range of oil concentration.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available