CDR FoodLab® - Sistema di analisi per alimenti 1

Determination of the Catechins in Wine

Catechins are colorless phenolic compounds belonging to the group of flavan-3-oils or flavanols, which are present in numerous woody plants including the grapes. In particular the catechins are present in the skin of the grapes. These compounds are responsible of the taste and other properties, including color.

The color of white wines, in fact, depends on the oxidation state of the phenolic compounds contained.


Test Principle

The test is based on the reading of the absorbance at 280nm, that is related to the absorbance of the catechins contained in the sample, diluted in a proper buffer.

Calibration Curve

The calibration curve of the CDR WineLab® instrument, carried out comparing to the reference method, confirmed an excellent linearity of the system over the entire measurement range.

The calibration curve of the CDR WineLab® instrument, carried out with respect to the reference method, for the analysis of catechins on wine. R² = 0.9987

Reagent test Kits

Measuring range

AnalysesMeasuring rangeResolutionRepeatability

The Analyzer for process and quality control in winemaking


CDR WineLab®

  • Complete analysis panel, supplied already configured
  • Up to 16 determinations simultaneously
  • Possibility of carrying out analyses of the same sample
  • Integrated printer
  • Full connections (LAN - USB - Bluetooth barcode/QR code reader)