Absorbance at 420, 520 and 620 nm; (a), color intensity (CI) and color hue values; (b) proportion of yellow (% Ye), red (% Rd) and blue (% Bl) for Sauvignon Blanc wines; (c) columns marked with different letters (a, b, c, d, e, f) differ significantly (p ≤ 0.05) among treatments.