Phenolics And Colour

TEST Description Method
Absorbance 320 nm Spectrophotometry
Absorbance 420 nm Spectrophotometry
Absorbance 500 nm Spectrophotometry
Absorbance 520 nm Spectrophotometry
Absorbance 620 nm Spectrophotometry
OD280 nm Spectrophotometry
Total polyphenols Folin-Ciocalteu
Total anthocyanins Glories
% Polymerised anthocyanins Glories
Total tannins Glories
PANEL: Red wine phenolics Total tannins; Total anthocyanins;
% Polymerised anthocyanins;
OD280 nm; 420 nm; 520 nm; 620 nm
 Spectrophotometry
PANEL: White wine phenolics Total polyphenols;
Total hydroxycinnamates;
Total flavonoids;
OD280 nm; 420 nm; 520 nm; 620 nm
 Spectrophotometry