Potential for Odor Evaluation Using Electrogastrograms

Odor evaluation is crucial in creating flavors and fragrances, which has traditionally been done through sensory evaluation. Recently, biometric evaluation, which measures physiological responses to odors, has gained interest for its objectivity. This study focused on transcutaneous electrogastrograms (EGGs) to measure gastric electrical activity during olfactory stimulation with varying vanilla concentrations. Nonlinear analysis showed that as the odorant concentration increased, the translation error and subjective odor intensity also increased, suggesting EGGs’ potential in effective odor evaluation.

The research findings were presented orally at the 63rd Annual Conference of Japanese Society for Medical and Biological Engineering, entitled " Potential for Odor Evaluation Using Electrogastrograms.”