METHOD FOR DETERMINATION OF FREE FAT IN LIQUID MILK-CONTAINING PRODUCTS WITH EMULSIFIED ANIMAL AND VEGETABLE FAT Russian patent published in 2013 - IPC G01N33/06 

FIELD: food industry.

SUBSTANCE: in milk butyrometers one prepares a sample of the product being analysed in the form of a mixture of the product being analysed with calcium chloride solution. The prepared sample is heated in a water bath. One performs centrifugation, determines the quantity of free fat in the sample against the scale of the milk butyrometres. The free fat content in the product being analysed is determined from the formula where: F_FF - free fat content in the product, %; F1 - free fat quantity in the product sample, %; F2 - total fat content in the product sample, %; K - recalculation coefficient taking the following values: K = 1.15 within the variation range of free fat content equal to 0.10-0.308 %, K = 1.05 within the variation range of free fat content equal to 0.31-0.60%, K = 1.07 within the variation range of free fat content equal to 0.61-0.90%.

EFFECT: determination accuracy enhancement combined with acceleration and simplification of the free fat determination procedure.

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