Hybrid Electronic Tongues Applied to the Quality Control of Wines

Table 2

PLS regression data for the comparison of obtained versus expected percentage for the three considered grape varieties for prediction set of mixtures (intervals calculated at the 95% confidence level).

Grape variety	Correlation ()	Slope	Intercept (%)
Pinot Noir	0.976	0.96 ± 0.08	1.6 ± 3.7
Merlot	0.949	0.94 ± 0.11	3.0 ± 4.7
Cabernet Sauvignon	0.939	0.90 ± 0.12	4.5 ± 5.7