Taste perception and cerebral activity in the human gustatory cortex induced by glucose, fructose and sucrose solutions.

Taste perception and cerebral activity in the human gustatory cortex induced by glucose, fructose and sucrose solutions. Chem Senses. 2019 Jun 04;: Authors: Mouillot T, Barthet S, Janin L, Creteau C, Devilliers H, Brindisi MC, Penicaud L, Leloup C, Brondel L, Jacquin-Piques A Abstract Glucose, fructose and sucrose are important carbohydrates in Western diets with particular sweetness intensity and metabolisms. No study has compared their cerebral detection and their taste perception. Gustatory evoked potentials (GEPs), taste detection thresholds, intensity perception and pleasantness were compared in response to glucose, fructose and sucrose solutions at similar sweetness intensities and at identical molar concentrations. 23 healthy subjects were randomly stimulated with three solutions of similar sweetness intensity (0.75 M of glucose, 0.47 M of fructose and 0.29 M of sucrose - sit. A), and with an identical molar concentration (0.29 M - sit. B). GEPs were recorded at gustatory cortex areas. Intensity perception and hedonic values of each solution were evaluated as were gustatory thresholds of the solutions. No significant difference was observed concerning the GEP characteristics of the solutions according to their sweetness intensities (sit. A) or their molar concentration (sit. B). In sit. A, the three solutions were perceived to have similar intensities and induced similar hedonic sensations. In sit. B, the glucose solution ...
Source: Chemical Senses - Category: Biochemistry Authors: Tags: Chem Senses Source Type: research