Phase I: Consumer assessment
Table 4 contains the resulting values of each assessed attribute during the consumers’ evaluation. The participants were asked to rate the different attributes on a 5-level ordinal scale and then the values were normalized (0 to 1 scale).
Collected data were verified to evaluate its consistency, and a correlation with the normal distribution above 0.92 was obtained for all attributes, as presented in Section D of the Supplementary material. According to results, the mean score for each attribute was different between the two samples, except for the "residues" score. Here it is important to mention that both samples had low values in the "residues" attribute score, which means that the emulsions left almost no residue or whitening after spreading and rubbing.