Abstract:
Sensory thresholds are associated with the level of stimuli strength which reaches to be
consciously sensed. This study assesses the impact of age and gender in the alteration of actual
and recognition threshold levels for sugar and salt taste modalities. Study was conducted
according ISO 8589:2007 guidelines, while using a series of standard solutions. Responses were
collected through a questionnaire and analyzed by multinomial regression using SPSS Statistical
Software (α =0.05). Results revealed that age is negatively correlated (P<0.05) with both
thresholds while gender was insignificant (P>0.05) for both gustation, that corroborate the
detection and recognition of a tastant decline with the aging process. Ageing causes high
declining of actual threshold level for sugar taste compared to the salt taste because degree of
stimulating power of salt is more vigor than that of sugar. However, chemical energy of both
constituents was less affective on the recognition threshold level.
