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Assessment of the miniature Kramer shear cell to measure both solid food and bolus mechanical properties and their interplay with oral processing behavior

AuthorsÁlvarez, M. Dolores ; Paniagua, Jaime; Herranz, Beatriz
KeywordsMiniature Kramer shear cell
Solid food
Mechanical properties
Oral processing
Issue Date11-May-2020
PublisherMultidisciplinary Digital Publishing Institute
CitationFoods 9(5): 613 (2020)
AbstractThis study assessed the usefulness of the miniature Kramer shear cell to determine relevant instrumental parameters of solid foods and bolus counterparts, examining their relationships with oral processing behaviors to obtain greater knowledge about the texture perception process. Six solid foods with different textural properties were tested. Bolus mechanical properties were also determined by means of cone penetration tests and rheological measurements, and their particle size distributions by sieving. Oral processing behavior (chewing time, number of chews, chewing rate, eating rate) and food saliva uptake (SU) of a young volunteer and a panel of 39 untrained participants were analyzed. The Kramer mechanical properties were very suitable for detecting different levels of food and bolus textural hardness and fracturability and the associated degrees of fragmentation achieved during mastication. Chewing time and number of chews were highly correlated with Kramer food and bolus mechanical properties for the single subject and for the panel’s oral processing behaviors. For the single subject, SU and eating rate also showed strong correlations with food and bolus mechanical properties, unlike chewing rate and food moisture content (FMC). In contrast, eating rate, FMC, and SU did not vary with the oral activities of the panel.
DescriptionThis article belongs to the Special Issue Rheology and Texture Interacction and Their Relationship with Sensory Perception.
Publisher version (URL)https://doi.org/10.3390/foods9050613
Appears in Collections:(ICTAN) Artículos
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