Digital image-based tracing of geographic origin, winemaker, and grape type for red wine authentication.
Clicks: 164
ID: 102848
2020
This work proposes the development of a simple, fast, and inexpensive methodology based on color histograms (obtained from digital images), and supervised pattern recognition techniques to classify red wines produced in the São Francisco Valley (SFV) region to trace geographic origin, winemaker, and grape variety. PCA-LDA coupled with HSI histograms correctly differentiated all of the SFV samples from the other geographic regions in the test set; SPA-LDA selecting just 10 variables in the Grayscale + HSI histogram achieved 100% accuracy in the test set when classifying three different SFV winemakers. Regarding the three grape varieties, SPA-LDA selected 15 variables in the RGB histogram to obtain the best result, misclassifying only 2 samples in the test set. Pairwise grape variety classification was also performed with only 1 misclassification. Besides following the principles of Green Chemistry, the proposed methodology is a suitable analytical tool; for tracing origins, grape type, and even (SFV) winemakers.
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lima2020digitalfood
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| Authors | Lima, Carlos Monteiro de;Fernandes, David Douglas Sousa;Pereira, Giuliano Elias;Gomes, Adriano de Araújo;Araújo, Mário César Ugulino de;Diniz, Paulo Henrique Gonçalves Dias; |
| Journal | Food chemistry |
| Year | 2020 |
| DOI | S0308-8146(19)32208-3 |
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