Grapes And Juice

Test Description Method Sensory threshold Levels in wine Comment Unit
Balling FTIR, refractometry degree
pH FTIR, potentiometry
Titratable acidity FTIR, titration g/L
Tartaric acid colorimetric g/L
Malic acid FTIR, enzymatic g/L
Potassium AA mg/L
Glucose FTIR, enzymatic g/L
Fructose FTIR, enzymatic g/L
YAN (NOPA+NH4) calculation mg/L
NOPA FTIR, colorimetric mg/L
NH4 FTIR, enzymatic mg/L