Peroxide Value test in Olive oil
The peroxide value of the olive oil indicates its primary oxidation state and thus its tendency to go rancid. In just 3 minutes, without titration, it is possible to carry out the analysis of the peroxide value of extra virgin olive oil or olive oil, not only in the laboratory, but also at the olive oil mill, along the production line of an oil mill, at acceptance or at the purchase and sale stage, using the CDR OxiTester analysis system that simplifies and speeds up the official method. The results are correlated with those of the reference methods.
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.
Correlation curve with reference methods
The CDR FOODLAB® method for determining the peroxide value of oils and fats, which is used by CDR OxiTester, has shown an excellent correlation with the AOCS Official Method Cd 8-53. In addition, the international reference laboratory Campden BRI carried out comparative tests between the CDR method 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.
Reagent test Kits
Analyzers for quality control of olive oil
- 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)
CDR OxiTester 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