Free Fatty Acids test in Fats and Oils

CDR FoodLab, chemical analysis system of  fats and oils, ideal solution for real time quality control In just 1 minute you can perform at production line the analysis of Free Fatty Acids (FFA) value in edible fats and oils using innovative CDR FoodLab method that simplifies and speeds up the AOCS Official Method Ca 5a- 40 procedure with the same accuracy.

Features of the Free Fatty Acids Test

  • Rapids results: 1 minute ISO/AOCS compliant method.
  • Simple method: low toxicity reagents are pre-filled in disposable cuvettes
  • high accuracy and sensitivity: up to 0.01% deviation in oleic acid can be detected.
  • test using micro-samples: suitable even to test fat substances that have a difficult extraction process.
  • Cost effective solution: rapid return on investment

Take a look! It’s fast and simple

 

Systems to test Free Fatty Acids in animal and vegetable fats and oils

  CDR FOODLAB CDR OXITESTER CDR PALMOILTESTER
Food Matrices Animal and vegetable fats and oils Olive Oil Palm Oil
Parameters FFA (Acidity)
Peroxide Value (PV)
p-Anisidine Value (AnV)
Soaps
Iodine Value in palm oil (IV)
Polyphenols in olive oil
Oxidative Stability Index (OSI) in olive oil
FFA (Acidity)
Peroxide Value (PV)
Polyphenols
Oxidative Stability Index (OSI)
K270
FFA (Acidity)
Peroxide Value (PV)
Iodine Value (IV)
DOBI
β carotene

Compliant to AOCS Method

The calibration curve of the analytical method FoodLab, carried out with respect to the reference method AOCS Official Method Ca 5a-40.

Comparison Foodlab vs NGD-ISO Methods in Oil Matrices

 

Method

Test type: End Point.
Testing time: one test 1 minute – 80 Tests/hour.
Are possible test sessions with several samples, up to a maximum of 16.
The system is supplied pre-calibrated and ready for use.

Principle of the test

Free fatty acids of the sample, at pH<7.0, react with a chromogenous compound and decrease its color. The decreasing of color, read at 630 nm, is proportional to the acid concentration of the sample, expressed as % of oleic acid.

The acid content of edible fats is given by the quantity of free fatty acids deriving from the hydrolytic rancidity of triglycerides. As this alteration occurs in unsuitable conditions for the processing and preservation of fats, acidity represents a basic indicator of the genuineness of the product. The test is particularly important during the refining of oils and fats, for the assessment of the processing cycle and for the definition of product categories.

Reagent test Kits

The reagents are packaged in foil pouches containing 10 tubes useful to perform 10 analyses.

This is the minimum package that allows the use of CDR systems even to those who need to make a few analyses, thus not wasting reagents.

There are also boxes of 100 tests, however, packaged in 10 bags of 10 tubes containing the reagent.

Code. 300125: 100 tests.

Code. 300128 : 10 tests (10 packages of 10 tests)

For samples, with high acidity, where a dilution is requested, you must use an appropriate reagent kits.

Code. 300129: 100 tests.

Sample Handling 

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.).
Extractable fats: extract the fatty part following the instructions provided in the test method (butter, cream, margarine, semi-finished products, etc.).

 

Measuring range

Free Fatty Acids test in olive oil

Specific curves suitable for the analyzers CDR OxiTester e CDR WineLab 

Meas. range
%oleicAc.
Code Sample Volume Resolution
%oleicAc.
Repeatability
0.03-1.1% *300128/A
*300125/A
2.5 µL 0.01% 0.02%
1-3.5% *300128/A
*300125/A
1.0 µL 0.01% 0.1%
1-13% *300128/A
*300125/A
2.5 µL diluted (100µL) 0.01% 0,5%

Free Fatty acids test in fat matrix

Specific curves suitable for the analyzers CDR FoodLab for fats and oils.

Measuring range
(%oleic ac.)
Code Sample Volume Resolution
(%oleic ac.)
Repeatability
0.01 – 0.3% *300128
*300125
10 µL 0.01% 0.01%
0.01 – 0.59% *300128
*300125
1.0 µL 0.01% 0.02%
0.03 – 1.1% *300128
*300125
2.5 µL 0.01% 0.02%
1 – 3.5% *300128
*300125
1 µL 0.01% 0.1%
1 – 13% *300128
*300125
2.5 µL diluited (100µL) 0.01% 0.5%
5 – 26% *300128
*300125
2.5 µL diluited (50µL) 0.01% 0.5%

The curves 10 µL e 5µL are mainly recommended for refined oils with very low acidity, requiring great precision to values lower than 0.5. The curve 2.5 µL is very accurate over the whole range and can be used for refined oils and non-refined with acidity below 1.1. The other ones are recommended only for oils with high levels of acidity.

FFA test in butter; margarine; cream and semi-finished fats

Specific curves suitable for the analyzer CDR FoodLab for fats and oils.

Measuring range
(%oleic ac.)
Code Sample Volume Resolution
(%oleic ac.)
Repeatability
0.01 – 0.59% *300128
*300125
5 µL 0.01% 0.02%

The curve 5µL is the same for the analysis of fats, but in this case it is necessary to make a small sample treatment .

FFA test in dried fruits nuts

Specific curves suitable for the analyzer CDR FoodLab for nuts.

Measuring range (%oleic ac.) Code Sample Volume Resolution
(%oleic ac.)
Repeatability
0.01 – 0.3% *300128
*300125
10 µL 0.01% 0.01%
0.01 – 0.59% *300128
*300125
5 µL 0.01% 0.02%
0.03 – 1.1% *300128
*300125
2.5 µL 0.01% 0.02%

The curves are the same for the analysis of fats, these are the most suitable rangefor the application of dried fruit nuts. The oil is extracted by pressure through the system CDR cold extraction.

FFA test in Palm Oil

Specific curves suitable for the analyzer CDR PalmOilTester.

Measuring range
(%oleic ac.)
Code Sample Volume Resolution Repeatability
0.01 – 0.54 (%palmitic ac.) *300120 5 µL 0.01 (%palmitic ac.) 0.2 (%palmitic ac.)
1 – 12.6 (%palmitic ac) *300120 2.5 µL diluited (100 µL) 0.01 (%palmitic ac.) 0.5 (%palmitic ac.)
0.01 – 0.45 (%lauric ac) *300120 2.5 µL 0.01(%lauric ac) 0.2% (%lauric ac)
1 – 10.60 (%lauric ac) *300120 2.5 µL diluited (100 µL) 0.01 (%lauric ac) 0.5 (%lauric ac)

Acid Value in Oils and Fats

Specific curves suitable for the analyzers CDR FoodLab for fats and oils.

Measuring range
(%oleic ac.)
Code Sample Volume Resolution
(%oleic ac.)
Repeatability
0.06 – 2.19 *300128
*300125
2.5 µL 0.01% 0.01%

Curve primarily applicable in the control of Biodiesel and fuel oils, requiring the expression of the result in Acid Aalue.

Find out the analyzer that best suits your needs

Systems to test Free Fatty Acids in animal and vegetable fats and oils

 Analizzatori CDR FoodLab per l'analisi dell'acidità in oli e grassi analimali e vegetali CDR FOODLAB CDR OXITESTER CDR PALMOILTESTER
Food Matrices Animal and vegetable fats and oils Olive Oil Palm Oil
Parameters FFA (Acidity)
Peroxide Value (PV)
p-Anisidine Value (AnV)
Soaps
Iodine Value in palm oil (IV)
Polyphenols in olive oil
Oxidative Stability Index (OSI) in olive oil
FFA (Acidity)
Peroxide Value (PV)
Polyphenols
Oxidative Stability Index (OSI)
K270
FFA (Acidity)
Peroxide Value (PV)
Iodine Value (IV)
DOBI
β carotene

Reagent developed by CDR S.r.l - ISO 9001 certified company

Free Fatty Acids was last modified: December 22nd, 2016 by CDR s.r.l.