Abstract
Abstract Background To evaluate the effect of food aroma on bite size, a semisolid vanilla custard dessert was delivered repeatedly into the mouth of test subjects using a pump while various concentrations of cream aroma were presented retronasally to the nose. Termination of the pump, which determined bite size, was controlled by the subject via a push button. Over 30 trials with 10 subjects, the custard was presented randomly either without an aroma, or with aromas presented below or near the detection threshold. Results Results for ten subjects (four females and six males), aged between 26 and 50 years, indicated that aroma intensity affected the size of the corresponding bite as well as that of subsequent bites. Higher aroma intensities resulted in significantly smaller sizes. Conclusions These results suggest that bite size control during eating is a highly dynamic process affected by the sensations experienced during the current and previous bites.
Highlights
To evaluate the effect of food aroma on bite size, a semisolid vanilla custard dessert was delivered repeatedly into the mouth of test subjects using a pump while various concentrations of cream aroma were presented retronasally to the nose
The present study investigated the dynamics of bite size control by presenting subjects with a series of bites of a semisolid food where the aroma released during oral processing varied from bite to bite
A similar effect was observed for the aroma condition of the previous bite, this effect was too small to be significant
Summary
To evaluate the effect of food aroma on bite size, a semisolid vanilla custard dessert was delivered repeatedly into the mouth of test subjects using a pump while various concentrations of cream aroma were presented retronasally to the nose. Eating and drinking serve to transfer food and drink from the mouth towards the throat before they enter the stomach and intestines. Solid foods that require more breaking down in the mouth typically result in smaller bite sizes than semisolid foods and liquids. Bite sizes become smaller as the consumer becomes satiated [2]. These results suggest that bite size is actively regulated during eating in response to sensory and/or digestive factors
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