المستخلص

The objective of this study was to investigate the Phase separation and inversion of emulsions prepared with different water: oil ratios. The combinations of emulsifiers PGPR/ sucrose ester and PGPR/span40 showed an ability of forming W/O emulsions up to ratio of 55/40 water/oil respectively. This is because of the PGPR emulsifier is the oil soluble emulsifier with law HLB. Combination of PGPR/Tween80 formed W/O emulsions up to ratio of 45/50 water/ oil respectively. Moreover, combination of polyglycerol/ sucrose ester was not able to form W/O emulsions it formed O/W emulsions in all water: oil ratios. Furthermore, Combination of polyglycerol/sucrose ester which formed O/W system showed higher physical stability followed by combination of PGPR/span40, PGPR/Tween80 and then PGPR/ sucrose ester was the lowest physical stability.