Peroxide Value analysis in Oils and Fats

The peroxide value of an edible fat indicates its primary oxidation state and thus its tendency to go rancid. In just 3 minutes, without titration, you can carry out the analysis of the peroxide value of oils and fats on the production line, in the laboratory or wherever you want, using the CDR FoodLab® analysis system which simplifies and speeds up the official method. The results are correlated with those of the reference methods ISO/AOCS.

Method

Principle of the test

R-O-O-R peroxides oxidise Fe2+ ions. The Fe3+ ions formed during oxidation are complexed to form a red coloured complex whose intensity, measured at 505 nm, is directly proportional to the concentration of peroxides in the sample. The innovative CDR method simplifies and speeds up the official procedure and, thanks to the micro-quantities of sample used, makes it possible to extend the analysis to fat samples that are difficult to extract.

Calibration curve

The CDR method for the determination of peroxide value of oils and fats showed very good correlation with the reference method: AOCS Official Method Cd 8-53. In addition, the international reference laboratory Campden BRI carried out comparative tests between the CDR FoodLab® method for determining the peroxide value and the UKAS accredited titration method used by Campden BRI (Campden BRI Method TES-AC-360 based on ISO 3960 or AOCS Cd 8b-90 or AOAC 965.33): the correlation coefficient was R² = 0.9681, value that shows that the correlation between the two methods is very good.

Correlation curve of the CDR FoodLab® method with the reference method obtained by the international reference laboratory CampdenBri. R² = 0.9681

Reagent test Kits

Measuring range Fats and Oils

AnalysesMeasuring rangeResolutionRepeatability

Measuring range Flours

AnalysesMeasuring rangeResolutionRepeatability

Measuring range Essential oils

AnalysesMeasuring rangeResolutionRepeatability

The analyzers for oils and fats quality control

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CDR FoodLab®

  • 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)
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CDR FoodLab® Jr

  • Partial analysis panel, supplied configured with 3 analyses of your choice, implementable
  • Up to 3 determinations simultaneously
  • Wireless connection to external printer
  • USB connections