3.6. Sensory evaluation
3.6.1. Triangular test
The numbers of the correct answers in triangular test for liposomes with vitamins were 28 for SPC, 42 for SPC:SA and 35 for SPC:CaS. The correct answer means that the evaluator could find the difference between commercial chocolate milk samples with or without liposomes.
Applying the statistical table for the triangular test with a significance level of 0.10 and 78 reviewers, the minimum number of correct answers from which the samples show significant differences is 32 (Meilgaard et al., 1999). From the above, it is concluded that SPC did not change sensory perception in chocolate milk.Instead, SPC:SA and SPC:CaS in commercial chocolate milk presented significant differences with respect to the same product without liposomes. So it was necessary to analyze if this difference was negative or positive with the test of acceptability.