Comparing consumer liking of beef from three feeding systems using a combination of traditional and temporal liking sensory methods

International audienceResearch on the effects of animal diet on consumer liking of beef has yielded conflicting results. Currently it is unknown whether dynamic changes occur in liking during consumption of beef. This study applied a combination of traditional and temporal (free and structured) liking methods to determine consumer liking of beef derived from animals that were fed grain (GF), grass silage plus grain (SG) or grazed grass (GG) during finishing. Three separate panels of beef eating consumers (n = 51; n = 52; n = 50) were recruited from Teagasc Food Research Centre, Dublin, Ireland to assess striploin steaks from animals fed either GF, SG, or GG. Using the free temporal liking (TL) method, results revealed that beef from GF animals was liked significantly less (p ≤ 0.05) in terms of overall liking, tenderness and juiciness, when compared to steaks from the SG and GG animals. These effects were not observed using the structured TL or traditional liking methods. Further analysis showed the evolution of scores over time was significant (p ≤ 0.05) for all attributes using the free TL method. Overall, the free TL method yielded more discriminative data and was perceived as easier to perform by consumers compared to the structured TL method. These results show that the free TL method may provide an opportunity to elicit more in-depth information regarding consumer sensory response to meat

Augmentation of Perceived Sweetness in Sugar Reduced Cakes by Local Odor Display

Multisensory augmented reality systems have demonstrated the potential of olfactory cues in the augmentation of flavor perception. Earlier studies have mainly used commercially available sample products. In this study, custom rye-based cakes with reduced sugar content were used to study the influence of different odorants on the perceived sweetness. A custom olfactory display was developed for presenting the odorants. The results showed that augmentation of a reduced sugar rye-based cake with localized maltol, vanilla, and strawberry odor increased the perceived sweetness of the cake-odor pair compared to a cake with deodorized airflow.publishedVersionPeer reviewe