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Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
Published on: September 17, 2021
Vibromyography of oral processing varies with type of semi-solid food and with sensory judgements
René A de Wijk1, Ilse A Polet, Johannes H F Bult
1Top Institute Food and Nutrition, P.O. Box 557, 6700 AN Wageningen, The Netherlands. rene.dewijk@wur.nl
Abstract:
Vibromyography was used to quantify oral activity during the processing of well-characterized semi-solid model foods whilst subjects assessed the intensity of the sensory attributes to thick, creamy, melting, fatty, rough and liking. A series of eleven starch-based vanilla custard desserts was prepared with five different viscosities, three different fat levels, and three different particle sizes. Over 5 sessions, subjects (N=10) took 5 ml spoonfuls of each of the stimuli for 5 s before they rated the strength of the various attributes. The results demonstrated that oral movements varied significantly with the type of semi-solid food and with the type of attribute. Individual subjects displayed a highly idiosyncratic behaviour. Oral movements were significantly related to sensory ratings of liking, creaminess and roughness.
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