Early Prediction of Shiraz Wine Quality Based on Small Volatile Compounds in Grapes

Figure 2

Prediction of wine quality based on data for wine or grape volatiles. General regression analysis with 4-fold cross-validation for the prediction of the wine quality score (n = 16) based on wine volatiles (a) and early prediction of wine quality based on grape free and bound volatiles (b) or free grape volatiles only (c).

(a)

(b)

(c)