| Abstract
| - The volatile content of the effluent from the retronasal aroma simulator (RAS) was compared withthat of human breath using mass spectroscopy (MS−Nose). The ratios of volatile compounds fromthe RAS were closely related to those from the panelists' breath with the correlation coefficientsranging from 0.97 to 0.99 from model food systems. A greater sensitivity using the RAS was achievedbecause higher concentrations of volatiles in the MS−Nose were produced from the RAS than fromthe breath. In analyzing the effects on volatility of RAS parameters including airflow rate,temperature, saliva ratio, and blending speed, airflow rate had the greatest effect. The correlationcoefficients for the real food systems studied ranged from 0.83 to 0.99. The RAS gives a goodapproximation of time-averaged flavor release in the mouth as defined by breath-by-breathmeasurements. Keywords: MS−Nose; retronasal aroma simulator; RAS; breath-by-breath analysis; aroma; flavorrelease
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