Abstract
Changes in human emotions while smelling beer aromas were assessed using a measurement system for human brainwaves. The frequency fluctuation in the right frontal alpha-waves while smelling beer was dependent on the beer brand and showed a significant correlation with feelings of arousal (relaxed and refreshed feelings) upon sensory evaluation. A pilsner-type beer with an aroma characterized by hops had a relaxing effect on subjects compared with domestic beers and stout. An all-malt beer with an aroma characterized by esters had a relaxing effect on subjects compared with domestic beers. The frequency fluctuation in the right frontal alpha-waves while smelling beer also showed a significant correlation with the intensity of hop or ester aromas measured in the sensory evaluation. Thus, hop and ester aromas in beer were expected to contribute to an increase in feelings of relaxation while drinking beer.
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