Sensory and Consumer Research Has a Role in Supporting Sustainability of the Food System

Multi-attribute temporal descriptive methods in sensory analysis applied in food science: A systematic scoping review

Among descriptive sensory evaluation methods, temporal methods have a wide audience in food science because they make it possible to follow perception as close as possible to the moment when sensations are perceived. The aim of this work was to describe 30 years of research involving temporal methods by mapping the scientific literature using a systematic scoping review. Thus, 363 research articles found from a search in Scopus and Web of Science from 1991 to 2022 were included. The extracted data included information on the implementation of studies referring to the use of temporal methods (details related to subjects, products, descriptors, research design, data analysis, etc.), reasons why they were used and the conclusions they allowed to be drawn. Metadata analysis and critical appraisal were also carried out. A quantitative and qualitative synthesis of the results allowed the identification of trends in the way in which the methods were developed, refined, and disseminated. Overall, a large heterogeneity was noted in the way in which the temporal measurements were carried out and the results presented. Some critical research gaps in establishing the validity and reliability of temporal methods have also been identified. They were mostly related to the details of implementation of the methods (e.g., almost no justification for the number of consumers included in the studies, absence of report on panel repeatability) and data analysis (e.g., prevalence of use of exploratory data analysis, only 20% of studies using confirmatory analyses considering the dynamic nature of the data). These results suggest the need for general guidelines on how to implement the method, analyze and interpret data, and report the results. Thus, a template and checklist for reporting data and results were proposed to help increase the quality of future research.

Health- or Environmental-Focused Text Messages to Increase Consumption of a Sustainable Diet among Young Adults: Importance of Expected Taste

Taste is a frequently cited barrier to the greater adoption of plant-based foods, a dietary pattern associated with both health and environmental benefits. To examine the role of expected taste in promoting greater adoption of plant-based foods, we examined the impact of a text-message intervention on the expected taste of both meat- and plant-protein foods. Young adults (n = 159) were randomly assigned to receive either health- or environment-focused text messages twice a week for eight weeks. Study measures (pre- and post-) included dietary recalls, the expected tastiness of meat- and plant-protein images and plant-based diets, consumption intention, and person-related factors such as moral satisfaction and the subjective norms of plant-based eating and health and environmental values. Participants rating plant-protein foods tastier at baseline were more likely to report higher actual (p < 0.001) and intended (p = 0.017) consumption of plant proteins following the intervention. While text messages had a limited effect on altering the expected taste of specific plant-protein foods, the messages did elevate the expected tastiness of plant-based diets. Baseline person-related factors positively predicted changes in expected tastiness of plant-based diets. Messages promoting plant-based foods may be more effective if these foods are first perceived as tasty. Furthermore, incorporating person-related considerations into messaging strategies may improve the expected taste of plant-based foods.