Phenolics And Colour

TESTDescriptionMethod
Absorbance 320 nmSpectrophotometry
Absorbance 420 nmSpectrophotometry
Absorbance 500 nmSpectrophotometry
Absorbance 520 nmSpectrophotometry
Absorbance 620 nmSpectrophotometry
OD280 nmSpectrophotometry
Total polyphenolsFolin-Ciocalteu
Total anthocyaninsGlories
% Polymerised anthocyaninsGlories
Total tanninsGlories
PANEL: Red wine phenolicsTotal tannins; Total anthocyanins;
% Polymerised anthocyanins;
OD280 nm; 420 nm; 520 nm; 620 nm
 Spectrophotometry
PANEL: White wine phenolicsTotal polyphenols;
Total hydroxycinnamates;
Total flavonoids;
OD280 nm; 420 nm; 520 nm; 620 nm
 Spectrophotometry