Continuous shear rheometry of o/w emulsions; control of evaporation in cone/plate geometry.
Volatile solvents may evaporate during cone/plate viscometry so that false rheograms develop. This surface evaporation was prevented in a cod-liver oil-in-water emulsion stabilized with zanthoxylum gum by layering a film of cod-liver oil on the exposed surface of the emulsion test sample. The oil layer effectively prevented evaporation and did not alter significantly the rheological behaviour of the test material.
Orafidiya
L O
LO
Dept. of Pharmaceutics, Obafemi Awolowo University, Oyo State, Nigeria.
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003060:Cod Liver Oil; D004655:Emulsions; D009821:Oils; D012212:Rheology; D014783:Viscosity; D014867:Water
D004655:Emulsions; D009821:Oils; D014867:Water; D003060:Cod Liver Oil