Moreover, the yeast and mold count values recorded for the formulated sample F4 were noted to show delayed proliferation when compared to F1, F2 and F3 (Table 5).
In conclusion, the combination of 7% benzophenone-3, 7% ethylhexyl methoxycinnamate and 6% titanium dioxide seems to be very interesting since it preserved physicochemical properties of the product and was efficient against the growth of different spoilage microorganisms. It should be noted that the maximum authorized levels are 7.5% for -Ethylhexyl 4methoxycinnamate are 7% for benzophenone-3 according to FDA (FDA, 1999) and 25% for titanium dioxide (Salvador and Chisvert, 2005) in the F4 formulation.