Chewing behavior and bolus properties as affected by different rice types
Loading...
Date
2012
DOI
Open Access Location
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
World Academy of Science, Engineering and Technology
Rights
Abstract
The study aimed to investigate the effect of rice types on chewing behaviours (chewing time, number of chews, and portion size) and bolus properties (bolus moisture content, solid loss, and particle size distribution (PSD)) in human subjects. Five cooked rice types including brown rice (BR), white rice (WR), parboiled white rice (PR), high amylose white rice (HR) and waxy white rice (WXR) were chewed by six subjects. The chewing behaviours were recorded
and the food boluses were collected during mastication. Rice types were found to significantly influence all chewing parameters
evaluated. The WXR and BR showed the most pronounced differences compared with other rice types. The initial moisture content of un-chewed WXR was lowest (43.39%) whereas those of other rice types were ranged from 66.86 to 70.33%.
The bolus obtained from chewing the WXR contained lowest moisture content (56.43%) whilst its solid loss (22.03%) was not significant different from those of all rice types. In PSD evaluation using Mastersizer S,
the diameter of particles measured was ranged between 4 to 3500μm.
The particle size of food bolus from BR, HR, and WXR contained much finer particles than those of WR and PR.
Description
Keywords
Chewing Behavior, Mastication, Rice, Rice Types, Bolus Proerties
Citation
International Journal of Medical and Biological Sciences, 2012, 6 pp. 51 - 56 (5)