Journal
JOURNAL OF TEXTURE STUDIES
Volume 47, Issue 6, Pages 461-473Publisher
WILEY-BLACKWELL
DOI: 10.1111/jtxs.12185
Keywords
Breakdown path; food bolus; food oral processing; moisture content; temporal dominance of sensations
Categories
Funding
- New Zealand Ministry of Business, Innovation and Employment [C02X0807]
- University of Auckland
- New Zealand Ministry of Business, Innovation & Employment (MBIE) [C02X0807] Funding Source: New Zealand Ministry of Business, Innovation & Employment (MBIE)
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This study explored links between texture perception and breakdown path throughout oral processing. Five subjects chewed a short dough biscuit recipe. Dynamic textural perception was followed using Temporal Dominance of Sensations. Subjects expectorated at three stages of bolus formation (early, mid, and point of swallow). Visual inspection and moisture content (MC) provided a description of breakdown path. Interindividual differences in perceived texture and breakdown paths were observed. This study indicated differences between how individuals used sensory texture terms to describe bolus structure. The dry-to-sticky dominance transition corresponded to increased mixing and MC. However, there was not a significant change in MC for all subjects. A panel-level analysis agreed with the Mouth Process model but there were interindividual differences at the point of swallow. This study suggests that there may not be a universal swallowing threshold for this biscuit recipe in terms of the measured properties but does indicate it may be possible to group consumers using bolus structure swallowing thresholds. PRACTICAL APPLICATIONS Oral processing of a solid food involves food breakdown and reassembly with saliva into a deformable bolus that can be swallowed safely. The relationships between masticatory behavior, perceived texture, bolus structure, and mechanical and rheological properties throughout oral processing are still not fully understood. This study provides evidence of the subjective nature of oral processing and texture perception but indicates that each individual is not necessarily unique. Consumers may be able to be categorized into different groups based upon sensory dominance, bolus structure, and moisture content swallowing thresholds. Understanding these groupings could aid in the design of foods that follow a desired oral processing path and therefore provide consumers with a specific sensory experience.
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