UV monitoring of sugars during wine making.
A UV/UV system for the spectrophotometric determination of sugars during wine production is described. The methodology is based on the formation of a UV-absorbing byproduct produced by the photodegradation of sugars. Under the given experimental conditions, the influence of increasing the amount of acids and alcohol is negligible. The measurement by UV/UV is compared with FTIR as reference method and validated according to the French norm AFNOR XPT 90 210.
Roig
B
B
Laboratoire Génie de l'Environnement Industriel, Ecole des Mines d'Alès, 6 avenue de Clavières, 30319 Alès Cedex, France. benoit.roig@ema.fr
Thomas
O
O
D002241:Carbohydrates / Q000032:analysis*; D010782:Photolysis; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*; D017550:Spectroscopy, Fourier Transform Infrared; D014920:Wine / Q000032:analysis*
D002241:Carbohydrates