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Oral Processing of Low Water Content Foods – A Development to H utchings and L illford's Breakdown Path
Author(s) -
Hawthornthwaite David,
Ramjan Yaneez,
Rosenthal Andrew
Publication year - 2015
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/jtxs.12126
Subject(s) - swallowing , intensity (physics) , dysphagia , food science , extant taxon , path (computing) , econometrics , computer science , mathematics , psychology , chemistry , medicine , physics , biology , dentistry , evolutionary biology , surgery , quantum mechanics , programming language
The “hard‐to‐swallow” phenomenon previously reported for peanut paste has been investigated for other oil seed butters. The temporal dominance of sensation ( TDS ) technique showed similar findings, adding to the list of materials that do not follow H utchings and L illford's breakdown path ( J ournal of T exture S tudies 19 : 103–115). From our data, we propose a modification to the H utchings and L illford model that allows for initial hydration of dry foods. The model holds well for oil seed pastes and may also help to explain the behavior of some dry, carbohydrate‐rich foods previously constrained to fit extant models. Because TDS does not measure the magnitude of an attribute, we undertook time intensity studies to assess stickiness of peanut pastes during oral processing. In the absence of another attribute becoming dominant, the intensity of sticky/cohesive sensations may remain paramount but diminish in intensity, prior to swallowing. Practical Applications Modeling oral processing may help us to understand the triggers for swallowing and thus assist people with swallowing difficulties (dysphagia). The much cited model developed by Hutchings and Lillford appears not to hold for all foods and exceptions necessarily require further investigation. This paper considers other published studies on oral processing of low water foods, offering an alternative interpretation to those previously given.