p-Anisidine Value (AnV) test in Fats and Oils

Innovative CDR Foodlab Method, fast, user-friendly and realiable simplifies the standard AOCS (Cd 18-90) procedure since permit to test micro-quantities of samples (melted fats or oil as it is) without any treatment in just 2 minutes without toxic reagents, dedicated instrumentation or skilled operator. Compliance with AOCS Official Method Cd 18-90

Analyzers

You can determine the p-Anisidine Value in oils and fats with 2 different systems of FoodLab Line:

• FoodLabFat: designed to measure the free fatty acids (FFA)/Acidity, peroxide value (PV), soaps, Anisidine value (AnV) in oils and fats
• PalmOilTester: designed to measure acidity (FFA), Iodine Value (IV), DOBI & carotene content, Peroxide Value (PV), Anisidine Value (AnV) in palm oil.

To find out what is the analyzer that best suits your needs
See the comparison table»

Method

Test type: kinetic
Colorimetric reaction at 366 nm
Testing time: one test 2 minute - 40 Tests/hour.
Are possible test sessions with several samples, up to a maximum of 14.
The system is supplied pre-calibrated and ready for use.
It is also possible to standardize the system using samples with a known value.

Calibration Curve / Correlation Data

CDR FoodLab method shows a good correlation with AOCS Official Method Cd 18-90

Principle of the test

Aldehydes, derived from the secondary oxidation of fat matrix, react with the p-anisidine determining a variation in the absorbance, measured at 366 nm. Anisidine value is expressed as AnV (Anisidine value) following AOCS (Cd 18-90) the reference method

Anisidine value test is used to assess the secondary oxidation of oil or fat, which is mainly imputable to aldehydes and ketones, and is therefore able to tell the oxidation "history" of an oil or a fat.

Furthermore, AnV analysis on oil is an indicator of excessive oil deterioration in deep frying process.

Composition of the Kit and Reagents

Code *300500 suitable for 100 tests, contains:
- 1 box includes 10 x reagent test kit *300502

Code *300503 suitable for 10 tests, contains:
- 1 bag includes 10 pre-filled cuvettes with reagent (mixture of alcohols and chromogenous compounds).

Sample Handling and Usage of Curves

Sample
Oil as is (extracted from dry fruits, seeds, nuts, etc.).
Solid fats: melted using bain-marie method before starting the test (animal fats, palm oil, etc.)

To find out what is the analyzer that best suits your needs
See the comparison table»