Food color is a powerful determinant of consumer perception, influencing emotions, taste expectations, and hedonic responses. This study investigated how red, yellow, and blue plating colors affect emotional responses, acceptance, and taste associations. Emotional descriptors were defined through two focus groups (n = 17) and validated in a consumer study with 295 participants (63.4% female, 35.3% male). Three color-dominant samples were evaluated online using the Check-All-That-Apply (CATA), Rate-All-That-Apply (RATA), and a nine-point hedonic scale. The red sample achieved the highest acceptance (7.27), followed by blue (7.03) and yellow (6.82) (p < 0.05). Red was strongly associated with positive RATA terms such as pleasant (3.90), with pleasure (2.95), and satisfied, while blue elicited negative responses, including disgusted (72%) and no appetite (74%). Pearson correlations confirmed pleasant (r = 0.70, p < 0.001) and with pleasure (r = 0.58, p < 0.001) as key acceptance drivers, whereas disgusted (r = −0.29, p < 0.001) acted as a rejection cue. Correspondence analysis explained 68% of the variance, and Partial Least Squares Regression highlighted pleasant (VIP = 1.86) as the strongest predictor of liking. Tableware (≥4.25) and plating arrangement (≥4.31) also significantly shaped emotional perception. These results demonstrate that plating colors critically influence consumer emotions and acceptance, offering practical insights for multisensory gastronomy and food design. Overall, the study shows that plating color can be strategically leveraged in gastronomy and product development to enhance consumer emotions and acceptance, providing valuable guidance for multisensory food design. Although conducted using photographic stimuli and limited to Brazilian consumers, the study provides valuable insights into how plating color influences emotional and hedonic responses. These findings can support both academic research and professional practice, guiding chefs and food designers in developing multisensory gastronomic experiences.

Conventional conservation techniques such as drying, salting or freezing do not allow for preserving the original characteristics of seaweeds. The present work aims to study the impact of minimal processing, in particular “Modified Atmosphere Packaging” (MAP), on the physicochemical characteristics and food safety of two seaweed species, “laver” (Porphyra umbilicalis) and “sea-lettuce” (Ulva lactuca), stored at 6 °C for 15 days. Different parameters were evaluated using analytical methods, namely the composition of headspace gases, color, texture, microorganisms, and volatile organic compounds (VOCs). The main findings of this study were that the MAP treatment was able to inhibit the respiration rate of minimally processed seaweeds, also preserving their color and texture. There was a remarkable reduction in the microbial load for P. umbilicalis treated under modified and vacuum atmospheres, and U. lactuca exhibited relatively steady values with no notable differences between the treatments and the control. Therefore, during the 15-day study period, both seaweeds met the requirements for food safety. GC–TOF-MS allowed to conclude that both MAP and vacuum treatments were more efficient in maintaining the odor characteristics of U. lactuca compared to P. umbilicalis with no significant differences throughout the storage days. Metabolic responses to diverse sources of abiotic stress seemed to account for most of the changes observed.

This study is aimed at the development of a fermented cashew nut cheese alternative supplemented with Chondrus crispus and Porphyra sp. and the evaluation of the impact of seaweed supplementation through analysis of physicochemical, microbiological, and organoleptic properties of the developed food products. The total lipid content decreased with the supplementation with seaweeds. Crude protein content also slightly decreased, while elemental analysis showed that mineral and trace element (Ca, K, Mg, Na, Fe, I, Se, and Zn) content increased when C. crispus was added to the paste. The analyses of color and textural (TPA) attributes showed that these were significantly influenced by adding seaweeds to the cashew paste. Generally, the microbiological results comply with the different European guidelines for assessing the microbiological safety of ready-to-eat foods placed on the market, except for aerobic mesophilic bacteria and marine agar counts. Flash Profile analysis allowed for distinguishing sample attributes, showing an increased flavor complexity of the plant-based cheese alternatives supplemented with seaweeds. Overall, the study indicates that seaweed enrichment mainly influenced the physicochemical and sensory characteristics of plant-based cheese alternatives.

Food color is a powerful determinant of consumer perception, influencing emotions, taste expectations, and hedonic responses. This study examined the impact of red, yel-low, and blue plating colors on emotional responses, acceptance, and taste associations. Emotional descriptors were defined through two focus groups (n = 17) and validated in a consumer study with 295 participants (63.4% female, 35.3% male). Three col-or-dominant samples were evaluated online using the Check-All-That-Apply (CATA), Rate-All-That-Apply (RATA), and a nine-point hedonic scale. The red sample achieved the highest acceptance (7.27), followed by the blue sample (7.03) and the yellow sample (6.82) (p < 0.05). Red was strongly associated with positive RATA terms, such as pleas-ant (3.90) and with pleasure (2.95), while blue elicited negative responses, including disgusted (72%) and no appetite (74%). Pearson correlations confirmed pleasant (r = 0.70, p < 0.001) and with pleasure (r = 0.58, p < 0.001) as key acceptance drivers, while dis-gusted (r = –0.29, p < 0.001) acted as a rejection cue. Correspondence analysis explained 68% of the variance, and Partial Least Squares Regression highlighted pleasant (VIP = 1.86) as the strongest predictor of liking. Tableware (≥4.25) and plating arrangement (≥ 4.31) also significantly shaped emotional perception. These results demonstrate that plating colors have a critical influence on consumer emotions and acceptance, offering practical insights for multisensory gastronomy and food design. Overall, the study suggests that plating color can be effectively leveraged in gastronomy and product de-velopment to enhance consumer emotions and acceptance, providing valuable guid-ance for multisensory food design.