• HPMC aq. soln. concent. of HPMC [CHPMC] • Uycalyptus oil concent. of Lecithin [CTA] • TA aq. soln. concent. of TA • Revolution speed for formation of (W/O) emulsion Stirring time • Revolution speed for (W/O)/W emulsion [Nr] Stirring time Reaction Temp. Reaction time | 270 ml 0.05 - 0.2 wt%-H2O 27 ml 0.1 wt%-Uycalyptus oil 3 ml 0 - 0.1 mol 1000 rpm 3 min 200 rpm 5 min 30˚C 1 h |