Characterization of Sugar Reduction in Model Confectionary Gels Using Descriptive Analysis.

Area of Science:

• Food Science
• Sensory Science
• Material Science

Background:

• Successful sugar reduction in food products necessitates mimicking sensory and functional properties of full-sugar counterparts.
• Determining how sugar absence impacts these properties is crucial for effective reformulation.

Purpose of the Study:

• To create a sensory profile of model confectionary gels with varying sugar concentrations.
• To compare sensory data with instrumental texture profile analysis data.
• To investigate the relationship between sensory attributes and instrumental measurements.

Main Methods:

• Descriptive sensory analysis of four gelling agents (gelatin, ι-carrageenan, κ-carrageenan, konjac glucomannan) at 0-20% sugar concentrations.
• Analysis of variance (ANOVA) and principal component analysis (PCA) for sensory data.
• Correlation, cluster, and partial least squares regression (PLS-R) for sensory-instrumental data comparison.

Main Results:

• Sensory analysis primarily clustered samples by gelling agent type, irrespective of sugar concentration.
• Konjac glucomannan was consistently characterized as chewy.
• Cohesion and gumminess correlated with melt-in-mouth and jiggly textures; adhesion and fracturability showed negative correlations.

Conclusions:

• Descriptive analysis offers a discriminating method for characterizing model confectionary gels.
• Gelling agent type is a primary determinant of sensory properties in reduced-sugar gels.
• Specific sensory attributes can be linked to instrumental texture measurements through advanced statistical analysis.