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Importance of consumer segmentation on evaluation of sensory acceptance profiles

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Several studies highlight the influence of previous exposure on food products’ acceptance. Thus, this study investigated clusters’ sensory acceptances for potato chips, based on reported consumption profiles. Acceptance testing (n=192) was applied to potato chips samples “original”, “barbacue”, “calabresa sausage”, “lime” and “onion & parsley”, using a 9-point structured hedonic scale (overall impression), from “dislike extremely” to “like extremely” (samples coded with three-digit random numbers, monadically presented in complete balanced block design). Statistical analyses included ANOVA, followed by Tukey’s HSD test (5% significance level), agglomerative hierarchical clustering using Euclidean distance by the Ward method and chi-square test, followed by Marascuillo procedure (5% significance level). Consumers were segmented into 3 groups with different sensory acceptance profiles among groups and when compared to the entire group. Results also indicated relations between previous exposure to the product category and specific flavors announced on packages with sensory acceptance profiles. Group 1 (n=55) reported a higher (p<0.05) consumption of sample “original” than group 2 (n=65) and, in fact, this sample had the highest (p<0.05) acceptance mean among samples within group 1 (no difference, p>0.05, from sample “lime”) and the lowest (p<0.05) acceptance mean within group 2. In addition, comparing this sample’s (“original”) results among groups, acceptance was higher (p<0.05) for group 1 than group 2. Also, none of consumers reported “calabresa sausage” as the most consumed sample and this might have reflected in lower acceptance means of this sample, within the entire group of consumers and within each cluster, especially 1 and 3 (n=72). In another study from the same project, no differences were found (p>0.05) on the number of mentions (free listing method) among samples for the attribute calabresa sausage, and the sample “calabresa sausage” had intermediate number of mentions for other attributes as well, suggesting less experience of consumers on this announced flavor.