Going beyond sensory and hedonic aspects: A Brazilian study of emotions evoked by beef in different contexts.

For deeper insight into beef consumer experiences during consumption, sensory descriptions seem to be insufficient, and exploration of emotions evoked by this product are required. In this context, the present study aimed to evaluate the emotions evoked by beef consumption in different contexts. To that end, this work was structured as follows: 1) Emotional vocabulary development; 2) Selection of beef cuts; and 3) Emotional profiling of beef cuts. The emotional vocabulary was useful for characterizing emotions evoked by two beef cuts with different sensory profiles, in different contexts, considering a within-subjects design. Rump cap samples showed the highest liking and were associated with positive emotions, while outside flat samples were less liked and characterized by negative emotions. The evoked context had no effect on hedonic and emotional intensities, but increased the number of emotions elicited by consumers. The correlation of sensory, hedonic and emotional information indicated that tenderness and internal color of beef were correlated with positive emotions and higher liking scores.

Looking at non-sensory factors underlying consumers' perception of smoked bacon.

Smoked bacon is a food consumed everywhere and previous work has focused on the sensory properties and acceptability of the product. However, little attention has been given to the non-sensory factors that drive sensory and hedonic perception of this product. In this context, the aim of this work was to study the influence of non-sensory factors on consumer behavior towards smoked bacon, using projective mapping coupled with conjoint analysis. Eight visual stimuli were created using a full factorial design with three factors (convenience, healthiness, and context of consumption), at two levels each. Ninety-five consumers positioned the stimuli in a two-dimensional space considering their similarities and differences, and then, rated their expected liking and purchase intention. According to the projective mapping, consumers based the representation of the stimuli on the three factors under study, but conjoint analysis indicated that healthiness was the most important factor, followed by the context of consumption and convenience. The findings of this study may help in the selection of future strategies in the process of food development, in order to launch products with greater chance of success in the market.

Measuring dynamics of emotions evoked by the packaging colour of hamburgers using Temporal Dominance of Emotions (TDE).

The packaging colour is one of the main extrinsic factors related to sensory perception as it can alter the emotions evoked by the product and, therefore, influence the moment of purchasing a product. There are several methods used to analyse emotions, but the Temporal Dominance of Emotions (TDE) approach stands out. This method allows the study of the temporality of dominant emotions until eating a portion of the hamburger. The aim of this work was to use TDE and overall acceptance to study the dynamic of the emotions evoked by the packaging colour of hamburgers, from first sight of the packaging until eating of a portion of hamburger. The twelve attributes of emotion, determined previously via a focus group, were presented to the consumers to evaluate three different stimuli formed by three different coloured packaging (green, white and red) and the same hamburger. The results showed that acceptance alone is not sufficient to understand the choice of a product, most likely because it does not capture the emotions involved in the consumption of a hamburger. Significant differences were found in the dynamic perception of emotions influenced by the packaging colour along time, mainly during the first "packaging - consumer" contact. Finally, the study of the dynamics of emotions provided valuable and complementary information to overall acceptance.

Understanding consumers' dynamic sensory perception for bacon smoked with different Brazilian woods.

The aim of the present study was to obtain the dynamic sensory profile of smoked bacon using Temporal Dominance of Sensations (TDS). Eight samples were studied considering different smoking process: six samples were submitted to conventional smoking using different woods from reforestation and two samples were manufactured with liquid smoke. Seventy-eight regular bacon consumers evaluated the samples using the TDS methodology. TDS data were analyzed based on the sequence (bandplot by attribute and trajectory map) and dominance duration (univariate and multivariate techniques). TDS results showed differences between samples in terms of rate, trajectory and duration of dominant sensations. These differences can be mainly explained by the smoking processes used in their manufacture and by the oral work involved in the mastication task. Overall, TDS was a promising method for capturing temporal sensory changes in smoked bacon.