Evaluation of the Recognition-basis odor concentration measurement method for quantification of the sensory deodorization effects

Abstract

Recognition-basis odor concentration measurement method (RO cm method), which is superior to odor intensity reduction measurement method (OIRM method) in objectivity, was proposed to measure sensory deodorizing effect. This study, in order to evaluate the usefulness of the RO cm method, the comparison of deodorization effect of several deodorants was confirmed, and the usefulness as an evaluation method of the deodorization effect was evaluated in comparison with the OIRM method. As the result, the RO cm method allowed the identification of odor index difference of half of odor index even in the presence of fragrance, which is equivalent to the odor intensity difference of 1.

In the RO cm method, the significant difference was shown on the difference between 2 fragrances in which the OIRM method could not show the difference of the sensory deodorizing effect. This result agrees with the evaluation result got from the general consumer answer.