Chemical Senses Advance Access published online on May 22, 2007
Chemical Senses, doi:10.1093/chemse/bjm028
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Food Perception with Age and Its Relationship to Pleasantness
1 Wageningen Centre for Food Sciences, PO Box 557, 6700 AN Wageningen, The Netherlands 2 Centre for Innovative Consumer Studies, Wageningen University and Research Centre, PO Box 17, 6700 AA Wageningen, The Netherlands 3 Department of Product Design and Quality Management, Wageningen University, PO Box 8129, 6700 EV Wageningen, The Netherlands
Correspondence to be sent to: Stefanie Kremer, Wageningen Centre for Food Sciences, PO Box 557, 6700 AN Wageningen, The Netherlands. e-mail: stefanie.kremer{at}gmx.de
| Abstract |
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Differences between elderly subjects (n = 46, 6186 years) and young subjects (n = 36, 1825 years) in food perception and food liking were investigated. Intensity and liking ratings were assessed for custard dessert, in which flavor enrichment, textural change, and irritant addition were incorporated as strategies to compensate for sensory losses with increasing age. The sensory acuity (taste, olfaction, irritation, chewing efficiency) of both young and elderly subjects was measured with the help of different sensitivity tests. The elderly perceived the custards differently from the young, mainly as less intense in flavor (cherry/vanilla) and less intense in creaminess/swallowing effort. Several of the observed interaction effects were different for the elderly and the young. The majority of these differences manifested as lower intensity slopes for the elderly. Losses in sensitivity to taste and to olfactory and trigeminal stimuli as well as a reduced chewing efficiency were observed on average for the elderly compared with the young. Furthermore, subgroups of the elderly were observed in which the compensatory strategies flavor enrichment, textural change, and irritant addition led to an increase in food liking. However, these subgroups did not differ in their sensory acuity. The present study does not support the assumption that age-associated changes in food perceptioncaused by losses in sensory acuityinevitably reduce the food liking of the elderly.
Key words: compensatory strategies, JND, sensory acuity, sensory interactions
Accepted 28 March 2007