Extensive and objective wine color classification with chromatic database and mathematical models

ABSTRACT

Theoretic conjecture and mathematical models used for classifying wines into different chromatic levels were examined, based on a comprehensive chromatic database of 237 dry red wines. Similar mathematical models were also built for 79 Chinese Cabernet Sauvignon dry red wines from different regions and vintages, which could be set as chromatic reference for other Chinese Cabernet Sauvignon dry red wines. The reliability of these models and relationships between different chromatic parameters were further validated by statistical tools. Such methodology can be adopted to build chromatic references for wines from different backgrounds, thus to classify wine color more extensively and objectively.

KEYWORDS:

• Dry red wine
• Color classification methodology
• Chromatic database
• Mathematical model

Declaration of interest

The authors declare no conflict of interest.

Supplementary data

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Additional information

Funding

This work was supported by the China Agriculture Research System (Grant No. CARS-29 to Chang-Qing Duan).