Abstract
In this study, the aroma characteristics of steamed sweet potato were compared with those of apple juice and the difference was clarified by sensory evaluation and odor sensor and electroencephalographic analyses. Although apple juice aroma was evaluated to be pleasant by all seven subjects, the same tendency was not observed for all the subjects on the electroencephalogram. Three subjects were relaxed by apple juice aroma, however no changes in α1and α2wave power were observed for the remaining four subjects. It was concluded that apple juice aroma elicits no unpleasant mood. On the other hand, by smelling steamed sweet potato aroma, α wave power was markedly decreased and a sense of tension [was enhanced]. A significant difference between apple juice aroma and steamed sweet potato aroma was observed on the basis of the changes in α wave power. It was clarified that steamed sweet potato aroma is different from apple juice aroma, and is not as pleasant as apple juice aroma.
