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Type: Journal article
Title: Taste sensitivity for monosodium glutamate and an increased liking of dietary protein
Author: Luscombe-Marsh, N.
Smeets, A.
Westerterp-Plantenga, M.
Citation: The British Journal of Nutrition: an international journal of nutritional science, 2008; 99(4):904-908
Publisher: C A B I Publishing
Issue Date: 2008
ISSN: 0007-1145
Statement of
Natalie D. Luscombe-Marsh, Astrid J. P. G. Smeets and Margriet S. Westerterp-Plantenga
Abstract: The aim of the present study was to determine individuals' taste threshold for monosodium glutamate (MSG) alone and in combination with inosine 5′-monophosphate (IMP-5) and to examine if this threshold was related to an increase in sensory properties (including pleasantness of taste) and/or to one's preference for dietary protein over carbohydrate and fat. Using the triangle tasting method, the taste threshold was determined for thirty-six women and twenty-four men. Thresholds varied from zero to infinite as determined using a clear soup with added MSG in the concentration range of 0·1 to 0·8 % (w/w) MSG. Subjects rated fourteen sensory properties of the soup and also their ‘liking’, ‘eating frequency’ and ‘preference’ of twenty-two common high-protein, high-carbohydrate and high-fat food items. The taste threshold (and therefore sensitivity) of MSG was lowered from 0·33 (sem 0·24) to 0·26 (sem 0·22) % MSG when 0·25 % (w/w) IMP-5 was added. None of the sensory properties assessed was associated with the taste threshold of MSG ± 0·25 % IMP-5 in the overall study population. However, the taste descriptor ‘meatiness’ was associated with the threshold data for individuals who could taste concentrations of ≤ 0·4 % MSG. ‘Liking’ and ‘preference’ scores for protein were found to be related to the threshold of MSG ± 0·25 % IMP-5. From this study population we conclude that the taste threshold of MSG in combination with IMP-5 does appear to predict one's ‘liking’ of as well as ‘preference’ for high-protein foods.
Keywords: Monosodium glutamate
Inosine 5′-monophosphate
DOI: 10.1017/S000711450788295X
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