Soaps test in Oils and Fats
Soaps are salts of fatty acids obtained from a reaction that occurs between free fatty acids and sodium carbonate. Thanks to their water solubility and insolubility in oil, they can be separated from fat through specific procedures. Food industries use this technique to lower fat acidity and to enhance its organoleptic characteristics. For such industries, it is important to carry out a chemical test for determining the concentration of soaps in oil and fat.
Method
Test principle
At specific pH values soaps mixed with bromphenol, generate a specific blue colour. Its intensity, measured at 604 nm, is directly proportional to the concentration of soaps in the sample. CDR innovative method simplifies and accelerates the standard procedure, because it enables the test to be carried with micro-quantities and to be applied to fats that are difficult to extract.
Calibration Curve
CDR method shows a very good correlation with Official Method NGD C8-1976.
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Reagent test Kits
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
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The analyzers for oils and fats quality control
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)
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