Peroxide value (POV) of animal fat
The peroxide value (POV) of animal fat is determined according to JOCS for a sample dissolved in mixed solvent of chloroform and acetic acid (2:3) from which the dissolved oxygen is removed by nitrogen gas flowing through the sample while potassium iodide is being added. Then, perform titration of free iodine with 0.01 mol/L sodium thiosulfate up to the endpoint, which is the maximum inflexion on titration curve.
POV is calculated from titration volume of sodium thiosulfate.
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