The Influence of Flavor Release from a Solid Test Food, and its Time Intensity scoring, on Chewing Efficiency

Abstract Studies on relationships between chewing ability (CA) and flavor perception that use different test foods to determine both functions, include three assumptions: (1) inter-subject ratios of any CA measure are invariant to the test food, (2) CA is invariant to the subject’s amount of attention to the food, and (3) the value of CA is invariant to the nature of the flavor released. The present study used chewing efficiency (CE), the number of chewing cycles needed to halve the initial particle size, as a measure of CA with specific inter-subject ratios. The aim was to examine whether CE is affected by perceiving solely the release of flavor during habitual chewing, and by the combination of perceiving the release and its scoring of Time Intensity (TI), with attention to TI anyhow. CE was determined for 12 subjects in three sessions, using Optosil® as an artificial solid model food. Unflavored taste-less Optosil was used in session-1, with habitual chewing. Optosil flavored with 0.3% of the sweetener Neotame was used in session-2, with habitual chewing without TI scoring of flavor release. Flavor was released and TI was scored in session-3. The effect of flavor release and TI scoring on CE was highly significant (p = 0.0008; one-way ANOVA; paired observations). With respect to unflavored Optosil, CE improved 14.0% for habitual chewing on flavored Optosil, and 23.2% for additionally scoring TI of flavor release. Common conditions of test food, flavor and scoring are required for determining unbiased relationships between CE and perceived flavor release.

[1]  Selection in mixtures of food particles during oral processing in man. , 2018, Archives of oral biology.

[2]  E. Dransfield,et al.  Influence of Bitter Taste on Mastication Pattern , 2005, Journal of dental research.

[3]  A. van der Bilt,et al.  The Effect of Particle Size Reduction on the Jaw Gape in Human Mastication , 1991, Journal of dental research.

[4]  E. Dransfield,et al.  Variability of the masticatory process during chewing of elastic model foods. , 2000, European journal of oral sciences.

[5]  A. N. Nieuw Amerongen,et al.  The effect of toothbrushing on secretion rate, pH and buffering capacity of saliva. , 2006, International journal of dental hygiene.

[6]  J. F. Bates,et al.  Masticatory function - a review of the literature. III. Masticatory performance and efficiency. , 1976, Journal of oral rehabilitation.

[7]  H. W. van der Glas,et al.  Oral physiological characteristics among Chinese subjects in the eastern region of China. , 2019, Archives of oral biology.

[8]  Locking up of food between posterior teeth and its influence on chewing efficiency. , 2019, Archives of oral biology.

[9]  Wendy E. Brown,et al.  INFLUENCE OF CHEWING EFFICIENCY ON TEXTURE AND FLAVOUR PERCEPTIONS OF FOOD , 1996 .

[10]  A. van der Bilt,et al.  Peripherally induced and anticipating elevator muscle activity during simulated chewing in humans. , 1992, Journal of neurophysiology.

[11]  D. A. Luke,et al.  Methods for analysing the breakdown of food in human mastication. , 1983, Archives of oral biology.

[12]  A. van der Bilt,et al.  The influence of food consistency on chewing rate and muscular work. , 2017, Archives of oral biology.

[13]  J. P. Lund.  Mastication and its control by the brain stem. , 1991, Critical reviews in oral biology and medicine : an official publication of the American Association of Oral Biologists.

[14]  A. van der Bilt,et al.  Control of elevator muscle activity during simulated chewing with varying food resistance in humans. , 1992, Journal of neurophysiology.

[15]  A. van der Bilt,et al.  Functional roles of oral reflexes in chewing and biting: phase-, task- and site-dependent reflex sensitivity. , 2007, Archives of oral biology.

[16]  Terence Allen,et al.  Powder Sampling and Particle Size Determination , 2003 .

[17]  P. Lucas.  Dental Functional Morphology: How Teeth Work , 2004 .

[18]  A Vissink,et al.  The functions of human saliva: A review sponsored by the World Workshop on Oral Medicine VI. , 2015, Archives of oral biology.

[19]  C. Dawes,et al.  Effects of nine different chewing-gums and lozenges on salivary flow rate and pH. , 1992, Caries research.

[20]  A. van der Bilt,et al.  Measurement of Selection Chances and Breakage Functions During Chewing in Man , 1987, Journal of dental research.

[21]  Y. Kawamura,et al.  Modifications of masticatory behavior after trigeminal deafferentation in the rabbit , 2004, Experimental Brain Research.

[22]  The Influence of Initial Breakage on Size Reduction during Habitual Chewing of a Solid Test Food. , 2020, Archives of oral biology.

[23]  Jason R Stokes,et al.  The role of saliva in oral processing: Reconsidering the breakdown path paradigm. , 2019, Journal of texture studies.

[24]  A. van der Bilt,et al.  Comparison of external load compensation during rhythmic arm movements and rhythmic jaw movements in humans. , 1999, Journal of neurophysiology.

[25]  H. W. van der Glas,et al.  Determining chewing efficiency using a solid test food and considering all phases of mastication. , 2018, Archives of oral biology.

[26]  H. Koshino,et al.  The relationship between salivary secretion rate and masticatory efficiency. , 2004, Journal of oral rehabilitation.

[27]  H. W. Glas,et al.  A STABLE ARTIFICIAL TEST FOOD SUITABLE FOR LABELING TO QUANTIFY SELECTION AND BREAKAGE IN SUBJECTS WITH IMPAIRED CHEWING ABILITY , 2012 .

[28]  A. Miller,et al.  Oral and pharyngeal reflexes in the mammalian nervous system: their diverse range in complexity and the pivotal role of the tongue. , 2002, Critical reviews in oral biology and medicine : an official publication of the American Association of Oral Biologists.

[29]  J. Magara,et al.  Effect of attention on chewing and swallowing behaviors in healthy humans , 2019, Scientific Reports.

[30]  L M Gallo,et al.  Time-Frequency Analysis of Chewing Activity in the Natural Environment , 2011, Journal of dental research.

[31]  P. Lucas,et al.  Food Properties that Influence Neuromuscular Activity During Human Mastication , 1998, Journal of dental research.

[32]  H. H. Kleizen,et al.  Distribution of particle sizes in food comminuted by human mastication. , 1984, Archives of oral biology.

[33]  A. van der Bilt,et al.  A mathematical description of the comminution of food during mastication in man. , 1987, Archives of oral biology.

[34]  M. Peyron,et al.  Which variables should be controlled when measuring the granulometry of a chewed bolus? A systematic review. , 2018, Journal of texture studies.

[35]  Wendy E. Brown,et al.  Dynamics of food breakdown during eating in relation to perceptions of texture and preference: a study on biscuits , 2000 .