Oils and fats

Fish Oil

Nuts

Bakery products

Frying oils and fried snacks

Pet Food

Animal feeds and silages

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. This test has the same accuracy and yet it is easier than AOCS Official Method Ca 5a-40.

Free Fatty Acids analysis in Oils and Fats

CDR FoodLab® is the chemical analyzer for quality and process control that allows you to determine a wide range of parameters of many foods, animal feeds and pet foods. 

<ul><li>Rapids results and Simple method: the results come in less than 1 minute thanks to disposable pre-vialed reagents specifically developed by the research laboratories of CDR making analytical procedures fast and easy.</li><li>low toxicity reagents previaled in micro quantity and ready to use remove the need to handle toxic or carcinogenic compounds.</li><li>NO Calibration required</li><li>Results are comparable to the ISO/AOCS method with very high correlation coefficients.</li><li>high accuracy and sensitivity: up to 0.01% deviation in oleic acid can be detected.</li><li>test using micro-samples: suitable even to test fat substances that have a difficult extraction process.</li><li>Cost effective solution: rapid return on investment</li></ul>

Features of the FFA Test in oils and fats

Free Fatty Acid Determination Method

Endpoint analysis. Analysis time: [uni]. Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR FoodLab® and 3 tests for CDR FoodLab® Junior.<h3>Sample treatment</h3>Oil: take the sample in the unaltered state (olive oil, seed oil, hazelnut oil, etc.). Solid fat: melt in a water bath before sample collection (animal fats, palm oil, etc.). Fish oil: take the sample in the unaltered state Frying oil: take the sample in the unaltered state Snacks and fried products: with the CDR system, the oil to be analysed can be extracted with a simple mechanical treatment Dried fruit in shell: with the CDR system, the oil to be analysed can be extracted with a simple mechanical treatment Bakery products: it is necessary to grind the sample and add the EXTRAFLUID water-based fat extraction aid in appropriate proportions; after a short centrifugation the fat is obtained as supernatant. Spreads: simply add the extraction aid; after a short centrifugation, the fat is obtained as supernatant.

Free fatty acids of the sample, at pH&lt;7,0, react with a chromogenic compound and decrease its colour. The decreasing of colour, read at 630 nm, is proportional to the acid concentration of the sample, expressed as % of oleic acid.

Principle of the test

The calibration curve of the analytical CDR FoodLab® method, carried out with respect to the reference method <a target="_blank" rel="noopener noreferrer" href="https://www.cdrfoodlab.com/cdrfoodlab/validations/analysis-oil-matrices">AOCS Official Method Ca 5a-40</a>. Furthermore Free Fatty Acids content was determined using the <a target="_blank" rel="noopener noreferrer" href="https://www.cdrfoodlab.com/cdrfoodlab/validations/study-cdrfoodlab-reference-methods-oils">CDR FoodLab® instrument and the titration method used by Campden BRI</a> (Campden BRI Method TES-AC-211): the data for Free Fatty Acids using the CDR FoodLab® was found to be very consistent with good reproducibility across the triplicate runs, and the correlation is very good.

Calibration curve

Correlation curve of the CDR FoodLab® method with the reference method obtained by the international reference laboratory CampdenBri. R² = 0.9834

Reagent test Kits

Measuring range Fats and Oils

Measuring range Bakery products

CDR FoodLab® the analyzer for quality control of food, animal feeds and pet foods. Top version

CDR FoodLab®

CDR FoodLab® the analyzer for quality control of food, animal feeds and pet foods. Junior version