Quality control of used frying fats. Validity of quick tests to substitute polar compound determination
Keywords:Polar compounds, Quality control, Quick tests, Used frying fat
In this paper, substitution of polar compound quantitation by quick tests for discarding used frying fats according to official regulation, is evaluated.
Two commercialized tests (VERI-FRY and OXIFRIT) as well as two laboratory tests (PEREVALOV and Solubility in acetone:methanol 90:10) have been applied. Comparison of the results with those obtained for polar compounds indicated that OXIFRIT was the best quick tests as it gave the minimum percentage of enors. Given the present situation, the application of any of the two commercialized tests would contribute to improve frying fat quality.
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