Therefore, the above results indicate that the optimum ethanol percentage in such emulsions is 2.5%(v/v). The effect of this ethanol concentration on the droplet size and the viscosity of the emulsions of this study is justified by bibliographic data and could account for the unsuccessful preparation of emulsions with 50% and 100% (v/v) of white wine in the aqueous phase (especially in view of its overall chemical composition including protein and potassium content, which were found to be lower than those of the red wine data not shown)