3.3. Turbiscan
All emulsions stored at 25 C and 37 C demonstrated evidence
of physical instabilities after 12 days of storage (Fig. 4). Some evidence
of creaming and particle size increase was present in all
emulsions (data not shown). The Turbiscan plot revealed droplet
migration from the bottom of the tube to the top, which indicates
creaming. The slight downward movement of the middle of the plot
indicated particle size increase. Sedimentation was observed in
many of the replicates. In the emulsions, the percentage of oil in the
emulsion is relatively low (15 g/100 g w/w), rendering it prone to
gravitational separation (Sjoblom, 2006 € ). Visually, the emulsion
stabilized with AN6 at 25 C contained a distinct orange ring in the
Turbiscan test tube which indicated creaming. The high susceptibility
of the AN6 stabilized emulsion to the production of large