In Fig. 4, the droplet size distribution curves of the M series of emulsions are presented. The time period of fifteen days was chosen for these plots as it was the most indicative of the changes that occurred in the oil droplet sizes. It is evident that the narrowest distribution corresponds to the emulsion with 2%(w/v) mastic resin and the maximum of its curve corresponds to the smallest droplet diameter (10 μm) of the graph. This result suggests that the particular emulsion would be stable with time in terms of droplet coalescence and ultimately phase separation. When the initial size of the droplets is rather small and remains small with time, their coalescence rate could be considered low under certain conditions, otherwise the mean droplet diameter would increase. This finding indicates that the films that surround the droplets in the particular emulsion are quite durable and resistant [23]. In fact, the same emulsion exhibited the fewest changes in droplet size distribution over the sixty-day period of the study (data not shown) and, consequently, it was considered to be the most stable of the third series (M). For this reason it was chosen for further tests in combination with white and red wine. More specifically, the optimum emulsion in terms of stability was selected from each series (W, R and M) and two new test emulsions were prepared as a combination of their constituents; one emulsion with 20% (v/v) white wine in the aqueous phase and2% (w/v) mastic resin as additive, and a second emulsion with 20%(v/v) red wine in the aqueous phase and 2% (w/v) mastic resin. In the first case of the emulsions with the white wine.