New Insights into Wine Color Analysis: A Comparison of Analytical Methods to Sensory Perception for Red and White Varietal Wines

The Glories methodand CIE L*a*b*color space are poorly correlated in the lightred high-saturation color area. Non-uniformities in the CIE L*a*b* color space haveled to the CIEDE2000 formula, while the Euclidean color distance isstill used in wine research. In this study, 112 white and red wineswere examined to compare the Glories method, CIE L*a*b, and human perception usingmonovarietal wines from different grape varieties. The objective ofthis study was to investigate which of the two methods and which parameterof each method better aligned with human perception. The visual colorthreshold was re-evaluated with the CIEDE2000 formula and triangletesting. CIE L*a*b* more closely matched the human perception, elevating the use ofCIE L*a*b* overthe use of the Glories method. Visual color thresholds were betterexpressed with CIEDE2000 but still varied depending upon the colorarea in the CIE L*a*b* color space.

Automated summary

This study compares the Glory method, CIE L*a*b color space, and human perception of 112 white and red wines. The results show that the CIE L*a*b color space is closer to human perception, thus recommending its use over the Glory method. The CIEDE2000 formula better expresses visual color thresholds, but they still vary depending on the color area in the CIE L*a*b color space.